Ventral fin
n. 腹鳍
🧩 词语组成解析
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
The first chopsticks were made from bone and jade.
第一批筷子是骨头或玉制成的。
Moving away
正在移开
After gazing at the display for several minutes, Mr. Taylor went back into his shop.
泰勒先生站在橱窗外凝神欣赏了几分钟就回到了店里。