Vertebratus
a. [气](云)脊状的
🗣️ 情景例句
You really must have your wits about your when dealing with such people.
跟这类人打交道，你必须格外警觉。
To run for freedom
为求自由而逃跑
I can't understand why he is being so selfish. He isn't usually like that.
我不明白他此刻怎么这么自私。他平时不这样。