fin
n. /fɪn/ B2
鱼鳍；鳍状物
A thin flat body part that a fish uses for swimming.
仙境例句
The little fish waved a fin at Alice, as if to say good evening.
小鱼朝爱丽丝摆了摆鳍，好像在说晚上好。
原著这一句
“I wish I hadn’t cried so much!” said Alice, as she swam about, trying to find her way out.
“真后悔哭了那么多！”爱丽丝一边游着寻找出路，一边叹道。
卡罗尔原著 · 第 2 章