Peristomium
围口节(环节动物)
🗣️ 情景例句
He probably hates my work.
他也许讨厌我的作品。
I stayed and did some extra work.
我留下加了一会儿班。
The editor at once sent the journalist a fax instructing him find out the exact number of steps and the height of the wall.
”编辑立即给那位记者发去传真，要求他核实一下台阶的确切数字和围墙的高度。