n.
for a song
- 非常便宜;以低价
very cheaply; at a low price
a song and dance (about sth)
- 小题大做的抱怨;无谓的吵闹;胡搅蛮缠
if you make a song and dance about sth, you complain or talk about it too much when this is not necessary
- 冗长的解释;絮叨的托词
a long explanation about sth, or excuse for sth
on song
- 性能良好;运转顺畅
working or performing well
sing from the same hymn/song sheet
- 唱同一调子(在公开场合口径一致)
to show that you are in agreement with each other by saying the same things in public