Perisoma
[医]体壁（棘皮动物）
🗣️ 情景例句
What do you like to do during holiday?
在假日你喜欢做什么？
The thread breaks where it is weakest.
线断常在最细处。
Good. But we need some more. Uncle Wang is coming to supper.
好的。但我还要更多点。王伯伯今天来吃晚饭。