Periproct
n. (无脊椎动物的)围肛部
🗣️ 情景例句
OK. Do you know when you'll come and visit?
好啊。你知道几时还会再来拜访我们吗？
It's hard sailing when there is no wind.
没有风难航行。
We swam and dived off the rocks into the sea.
我们从岩石上跳进海里游泳。