Tailfins
(tailfin 的复数) n. 尾翼；垂直翼
🗣️ 情景例句
Goodbye, hope to see you again.
再见， 希望再次见到你。
If your prices are more favorable than those of your competitors we shall send you our order.
如果你方价格比其他竞争对手的优惠，我们将向你们订货。
or even the universe itself, must in the nature of things 'wear out'.
甚至宇宙本身，从事物的本质上来说都会磨损掉"。