Dipleurula
[动]对称幼虫
🗣️ 情景例句
The pollution in Beijing is alarming.
北京的污染给人们敲起了警钟。
Education begins a gentleman, conversation completes him.
人的教养始于教育，成于社交。
I'm sorry to burst in on you like this, but I'm really upset.
我很抱歉这样突然地找您，但我真的很心烦。