Holothuroidea
海参纲
🗣️ 情景例句
We'll head down there first thing tomorrow morning.
明早第一件事就是去那。
Didn't I tell you he's same size to me?
我没有说过他和我一样大小吗？
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。