Linchpins
n. 关键( linchpin的复数形式 )
🗣️ 情景例句
Unless in uniform, he doesn't look like a policeman.
除非穿上制服，要不他看起来不像警察。
I asked him to leave immediately, but he wouldn't.
我请他马上离开，但是他不肯。
Just sign there on the bottom.
那么，就请在下面这里签个名。