Edrioasteriodea
座海星纲
🗣️ 情景例句
I think I'm a cooperative worker.
我认为我具有合作精神。
So many countries, so many customs.
一个国家有一个国家的风俗。
He suggested that a double railway-tunnel should be built.
他提议建一条双轨隧道，这样就解决了通风问题。