Mytilidae
贻贝科
🗣️ 情景例句
I want to send this letter to China, by air mail.
我想把这封信航空邮到中国。
The population of Africa is growing by leaps and bounds.
非洲的人口正在极其迅速地增长。
Why are you in here?
你为什么在这里呢？