Episternites
背瓣(蝗科产卵器)
🗣️ 情景例句
I didn't quite catch your name.
对不起，我没听清楚你的名字。
This is a map.
这是一张地图。
Why does aperson standing in a bus or train tend to fall when a sudden start is made?
一个人站在公共汽车或火车上，当车突然开动时，他为什么会倾倒呢？