? 同義詞
??? 情景例句
After the marathon, most of the competitors looked all in.
跑完馬拉松，大多數參加比賽的人顯得疲勞不堪。
Who cares!
我不在乎！
One is the general atmosphere of secrecy in which it is carried out,
一是科研工作中普遍存在的保密氣氛；