by air

The pilot was given clearance to land by air traffic control.

飞行员得到空中交通管制站发出的着陆许可。

Send the parcel by air mail, please.

请用航空邮件寄包裹.

to send goods by air freight

空运货物

A dozen crates were shipped off by air freight last week.

十二篓上星期已空运走了.

Ten crates were shipped off by air freight last week.

上周有十篓货空运去了.

Will you travel by sea or by air?

你们乘船去,还是乘飞机去?

Are you going by boat or by air?

你是搭船去还是乘飞机去?

Casualties had to be brought to hospital by air.

伤者不得不用飞机送往医院。

The transportation of goods by air costs a lot.

航空运输货物花费很高.

He decided to make a journey to New York by air.

他决定乘飞机去纽约.

I shall send the letter by air.

我要用航空寄这封信.

You'd better go by air, it's very quick.

最好是乘飞机, 那样十分快.

You can freight your belongings by air or sea.

你可把东西经空运或海运运去.

Bacteria are carried long distances by air and water currents.

气流和水流可将细菌带得很远.

The goods will be transported to Tokyo by air.

货物将空运到东京.