Monoamine
[化] 一元胺
🗣️ 情景例句
Why is that necessary?
为什么有此必要
Friends may meet, but mountains never greet.
朋友可相逢，高山永分离。
Burglar alarms going off at any time of the day or night serve only to annoy passers-by and actually assist burglars to burgle.
防盗警报器在白天和黑夜的任何时候都会响起来，它的作用只是骚扰过路行人，而实际上却帮助窃贼入室行窃。