Microcracking
显微裂纹
🗣️ 情景例句
so that we can record our thoughts about the trip.
以便我们能录下旅行中的感想。
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。
Somebody's knocking at the door. I'll answer it.
有人在敲门，我去开。