Helical fin
[化] 螺旋翅片
🧩 词语组成解析
a. 螺旋状的\\n[电] 螺线
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
I was when I first came to the United States.
当我刚到美国来的时候是感到有点紧张。
Their stories are in conflict with each other.
他们的叙述相互矛盾。
I bought it the day it was released.
它发行的当天我就买了。