Pelvic fin
n. <动>腹鳍
🧩 词语组成解析
pelvic
['pelvik]
adj. 骨盆的，关于骨盆的;
fin
[fin]
n. 鱼鳍;鳍状物;（汽车、飞机、炸弹上的）尾翅;散热片;
vt. 给…装上翅片;切除鳍;
vi. 潜泳;（猛烈地）拍动（鳍）;
🗣️ 情景例句
You are a terrific instructor, Jack.
你真是个了不起的教练 Jack。
It doesn't add up!
这就怪啦！
The whole village has been working day and night gathering and threshing this year's crop before the September rains.
全村的人都日夜奋战，要赶在9月的雨季之前把今年的庄稼收获上来，打完场。