Derigueur
礼貌习惯上所必需的, 合乎礼仪的
🗣️ 情景例句
If you quit smoking now, you'll feel better in no time.
如果你现在戒烟的话，你很快就会感觉好多了。
When were you born?
你什么时候出生的？
You must have been mad to speak to the servant! She might have called for help.
你准是疯了，竟跟这个仆人说话。她可能会大喊救命的。