Quillback
n. 背鳍前部象翎管而突出的北美产淡水鱼
🗣️ 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。
Great men have great faults.
伟人也会铸大错。
What's this?
这是什么？