Plainclothesmen
便衣刑警, 侦探( plainclothesman的名词复数 )
🗣️ 情景例句
Are you feeling better?
你觉得好些了吗？
It's about time.
时间差不多了。
It was from the study of these that so much was learnt about the interior of the earth.
正是从这两种波的研究中，我们可以了解到地球内部的许多情况。