num. 万亿; 兆; 大量; 无数; 百万兆
Collins.2 / BNC.26476 / COCA.5167
number
The plural form is trillion after a number, or after a word or expression referring to a number, such as ‘several’ or ‘a few’. 用在数字或 several, a few 等表示数字的词或词组后,其复数形式为 trillion。
noun
Synonym: one million million1000000000000
Synonym: one million million million
adj