Pinnigrade
a. & n.用鳍(或鳍状肢)行走的(动物)
🗣️ 情景例句
I'm really concerned about them,
我真的为他们担心，
The locusts completely wiped out this year's crops.
蝗虫使今年的庄稼全毁了。
That's very nice of you.
你真是太好了。