查询词典 tread on air

E.g. You'd better send the letter by air mail .

这封信你最好航空邮寄。

He sent the letter by air mail, so that it might reach them in good time.

我用航空邮件发出这封信，以便他们及早收到。

The bird thinks it is an act of kindness to give the fish a lift in the air.

鸟儿以为把鱼抓在天空飞行，是一种友善的行为。

When planes fly,they need air to lift their wings.

当飞机飞的时候，他们需要空气举起他们的翅膀。

Tower cranes can rise 150 feet in the air and lift up to 19 tons.

塔式起重机可以上升150英尺的高空，并抬起至19吨。

Objective:To probe the experience of early treatment and air lift in mass burn.

目的 ：探讨成批烧伤早期救治与航空转运的经验。

No child can lift this much air; it weighs far too much.

没有一个孩子能挪动这么多的空气。

Likewise, to pull up the bag,one has to lift the air

同理， 拉起袋子，也会拉起袋子里的空气。

How does a balloon Rise in the air,And lift people up?

一个气球怎样在空中上升，并且向上提起人？

There was a lift in the air, an exhilaration.

空气清朗起来了。这真是个可喜的现象。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。