sea

noun

1. 海；海洋
   the salt water that covers most of the earth's surface and surrounds its continents and islands
   1. to travel by sea
      海上旅行
   2. a cottage by the sea
      海滨小屋
   3. The waste was dumped in the sea .
      废物倒入海中。
   4. The wreck is lying at the bottom of the sea.
      沉船躺在海底。
   5. We left port and headed for the open sea (= far away from land) .
      我们离开港口，向外海驶去。
   6. the cold seas of the Arctic
      北极地区寒冷的海洋
   7. a sea voyage
      海上航行
   8. a hotel room with sea view
      看得见大海的旅馆客房
2. 海
   a large area of salt water that is part of an ocean or surrounded by land
   1. the North Sea
      北海
   2. the Caspian Sea
      里海
3. 海面情况；海浪状况
   the movement of the waves of the sea
   1. It was a calm sea.
      海上风平浪静。
   2. The sea was very rough.
      海上风急浪高。
4. 大量；茫茫一片
   a large amount of sth that stretches over a wide area
   1. He looked down at the sea of smiling faces before him.
      他看着眼前这笑脸的海洋。

1. N-SING 海;海洋
   The sea is the salty water that covers about three-quarters of the earth's surface.
   1. Most of the kids have never seen the sea...
      多数孩子从未见过海。
   2. All transport operations, whether by sea, rail or road, are closely monitored at all times.
      所有的交通活动，无论是通过海路、铁路还是公路，都时刻受到密切监视。
2. N-PLURAL 海面状态;海域
   You use seas when you are describing the sea at a particular time or in a particular area.
   1. He drowned after 30 minutes in the rough seas...
      他在汹涌的海浪中挣扎了 30 分钟后淹死了。
   2. The seas are warm further south.
      海水的温度越往南越高。
3. N-COUNT; N-IN-NAMES 内海
   A sea is a large area of salty water that is part of an ocean or is surrounded by land.
   1. ...the North Sea.
      北海
   2. ...the huge inland sea of Turkana.
      图尔卡纳浩瀚的内陆海
4. N-SING 大量;茫茫一片
   A sea of people or things is a very large number of them together.
   1. Down below them was the sea of upturned faces...
      他们下面是无数张仰望的脸。
   2. His eyes ran over the sea of bottles and glasses on the table.
      他扫了一眼满桌的瓶子和玻璃杯。
5. PHRASE 茫然;困惑;不知所措
   You can say that someone is all at sea when they are in a state of confusion or uncertainty.
   1. If you had never seen a telly ad, you would be all at sea with popular culture.
      如果你从没看过电视广告，你就搞不懂什么是大众文化。
6. PHRASE 在海上;在海里
   At sea means on or under the sea, far away from land.
   1. The boats remain at sea for an average of ten days at a time...
      这些船只每次在海上平均航行 10 天。
   2. His body was found at sea in waters off the Canary Islands.
      他的尸体在离加那利群岛不远的海上被发现。
7. PHRASE 到海上;向海上
   If you go or look out to sea, you go or look across the sea.
   1. ...fishermen who go to sea for two weeks at a time...
      每次出海两周的渔夫们
   2. He pointed out to sea.
      他指向大海。

1. The sea got very rough and the boat capsized
   海上波涛汹涌，小船翻了。
2. Mist had crept in again from the sea.
   薄雾又从海面上弥漫过来了。
3. I've had a lifelong fascination with the sea and with small boats.
   我一生都对大海和小船着迷。
4. The sea froths over my feet
   海水在我的脚上泛起泡沫。
5. The Nile flows from Lake Victoria in East Africa north to the Mediterranean Sea.
   尼罗河由东非的维多利亚湖向北流至地中海。
6. Sea walls collapsed, and low-lying areas were flooded.
   海堤溃决，海水淹没了低洼地区。
7. It lies between the plain and the sea at an oblique angle to the coastline.
   它位于平原与大海之间，跟海岸线形成一个斜角。
8. A number of beaches in the region have been polluted by sewage pumped into the Irish Sea.
   这一地区的一些海滩已被排放到爱尔兰海的污水污染了。
9. The ship's radar scanned the sea ahead.
   船上的雷达扫描了前方的海域。
10. Ancient scrolls were found in caves by the Dead Sea.
    死海旁边的山洞里发现了古代的卷轴。
11. Most of the kids have never seen the sea
    多数孩子从未见过海。
12. All transport operations, whether by sea, rail or road, are closely monitored at all times.
    所有的交通活动，无论是通过海路、铁路还是公路，都时刻受到密切监视。
13. He drowned after 30 minutes in the rough seas
    他在汹涌的海浪中挣扎了30分钟后淹死了。
14. The seas are warm further south.
    海水的温度越往南越高。
15. Down below them was the sea of upturned faces
    他们下面是无数张仰望的脸。
16. His eyes ran over the sea of bottles and glasses on the table.
    他扫了一眼满桌的瓶子和玻璃杯。
17. If you had never seen a telly ad, you would be all at sea with popular culture.
    如果你从没看过电视广告，你就搞不懂什么是大众文化。
18. The boats remain at sea for an average of ten days at a time
    这些船只每次在海上平均航行10天。
19. His body was found at sea in waters off the Canary Islands.
    他的尸体在离加那利群岛不远的海上被发现。
20. He pointed out to sea.
    他指向大海。
21. I took a deep breath of the fresh sea air.
    我深吸了一口海边的新鲜空气。
22. Scientists have described the Aral sea as the site of the worst ecological disaster on earth
    科学家把咸海描述成地球上最严重的生态灾难发生地。
23. He learnt his trade as a diver in the North Sea
    他在北海学会了潜水员这一行的本事。
24. In 1346 a hurricane whipped up the sea to destroy the town.
    1346年的飓风引起海啸并摧毁了城镇。
25. The square was a sea of people.
    广场上人山人海。
26. I like to swim, especially in the sea.
    我喜欢游泳，尤其喜欢在大海中游泳。
27. The sea calmed down.
    海上风浪平息了。
28. The sea water is mainly composed of water and salt.
    海水主要由水和盐组成。
29. The sea wind swept over the deck.
    海风席卷过甲板。

n.

at sea

• 在海上（尤指乘船）；在海里
  on the sea, especially in a ship, or in the sea
  1. It happened on the second night at sea.
     事情发生在出海后的第二天夜里。
  2. They were lost at sea .
     他们在海上迷失了方向。
• 困惑；茫然；不知所措
  confused and not knowing what to do
  1. I'm all at sea with these new regulations.
     我全然不懂这些新的规章。

go to sea

• 去当水手；当海员
  to become a sailor

out to sea

• 向（或在）外海
  far away from land where the sea is deepest
  1. She fell overboard and was swept out to sea.
     她从船上落入水中，被海浪冲向外海。

put (out) to sea

• 起航；出海
  to leave a port or harbour by ship or boat

between the devil and the deep blue sea

• 进退维谷；左右为难
  in a difficult situation where there are two equally unpleasant or unacceptable choices

there are plenty more fish in the sea

• 海里的鱼有的是；还有很多一样好的（人或事物）
  there are many other people or things that are as good as the one sb has failed to get

noun

1. a division of an ocean or a large body of salt water partially enclosed by land

2. turbulent water with swells of considerable size
   1. heavy seas

3. anything apparently limitless in quantity or volume

   Synonym:    ocean