Vails
(vail 的第三人称 -s形式) vi. 降下；脱帽；有利
🗣️ 情景例句
I know that you do a very big international business,
我知道贵公司在国际贸易方面的生意做得很大，
Thank you for the lovely flowers.
谢谢你送给我这么美的花。
I know that he's doing his best, but he says that he is a little weak in Chinese.
我知道他非常努力，但他说他的中文有点儿差。