Key witness
[法] 主要证人, 关键证人
🧩 词语组成解析
key
[kiː]
n. 钥匙;（打字机等的）键;关键，线索，秘诀;（音乐的）调;
vt. 键入;锁上;调节…的音调;提供线索;
vi. 使用钥匙;
adj. 关键的;主要的;
witness
['wɪtnəs]
n. 目击者，见证人;[法]证人;证据;
vt. 出席或知道;作记录;提供或作为…的证据;
vi. 做证人;见证;
🗣️ 情景例句
We're supposed to be there
我们应当先到那儿
If I were in your shoes.
如果我是你的话。
The currents of air that the walls of the ship direct upwards, as well as in the line of its course, are enough to give the great bird with its immense wings sufficient sustenance and progress.
沿船体的上升的气流和沿航线向前的气流给这种巨翼大鸟以足够的浮力和推力。