Airmails
vt. 航空邮寄（airmail的第三人称单数形式）
🗣️ 情景例句
Passport please.
请出示你的护照。
If it's not too much trouble, I would like some help.
如果你不嫌麻烦的话，我想请你帮个忙。
In the tree there is a bird.
树上有一只鸟。