Reen
n. 沟；排水沟
🗣️ 情景例句
She wanted something to do, I guess.
我猜想她想找点事做吧。
One hour's sleep before midnight is worth three after.
午夜前睡一小时抵得上午夜后睡三小时。
Alcohol may be a medical disinfectant, but should not be relied upon to sterilize water.
酒精可能是医学上的消毒剂，但决不可用来消毒饮用水。