Pinnigrade
a. & n.用鳍(或鳍状肢)行走的(动物)
🗣️ 情景例句
I need your help badly. My car can't start. Can you send somebody over?
我急需你们的帮助。我的车启动不了，能派人来修吗？
As soon as she quit the room he returned to it.
她刚离开房间，他回来了。
You did a good job.
你干得很好。