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
Not very good, I'm afraid, but I do play it a lot. Do you play, by any chance?
不怎么擅长，但我确实经常打。你有机会打球吗？
No. That's nog good either. But give me your number and I'll call you if somebody cancels.
不。也不行。不过请你把电话号码给我，如果友人取消约会，我就打电话通知你。
But some time later it began to rain.
但过了一阵子。天下起雨来，