night falls
waterfalls
falls apart
falls behind
A: The temperature falls sharply today.
A：今天气温下降得很厉害。
B: Yes, it is getting very cold.
B：是的，天气变冷了。
1) 落下，坠落
2) 跌倒
3) 下降
4) 瀑布
1. 落下，掉落
verb
1. To move downwards due to gravity.
Synonym: descend, drop