Will you travel by sea or by air?

你们，还是飞机？

Hi, Kevin, do you often travel by air?

嗨，凯文，你经常坐飞机旅行吗？

The exhibits were delivered by air from all over the country.

这些展品是从全国各地空动过来的。

Nor do they include already locked in warming hidden by air pollution.

它们也不包括被空气污染所掩盖的气候变暖。

Nowadays, the first way someone will search for you is by air.

如今，空中搜寻是搜救的首方式。

Two billion children are currently affected by air pollution.

目前，有20亿儿童正遭受空气污染的影响。

Do you want to mail it by air or by ordinary mail?

您是要寄空邮还是平邮？

I used to travel by air a great deal when I was a boy.

我在幼的时候，曾多次飞机旅行。

Unvoiced consonant sounds are made by air pushing through your mouth.

清辅音是空气通过你的嘴巴进行发音的。

Hundreds of thousands of people see the canyon by air each year.

每有千上万的人飞机游览峡谷。

When normal flights began again, many people were too afraid to travel by air.

正常飞行开始时，许多人害怕飞机旅行。

We are sending you our sample by air parcel post.

我们正要用邮包寄我们的样品给你们。

You can now easily access Angkor Wat by air, and it has hotels nearby.

大家现在可以飞机轻松到达吴哥窟，并且附近还有酒店。

Twenty-five thousand deaths per year are caused by air pollution.

每有25‰的死亡原因是空气污染。

The United States has announced new requirements for foreign nationals arriving by air.

美国宣布了对飞机抵达的外国公民的新要求。

Some three million people traveled by air in the U.S. over the weekend.

周末，美国大约有300万人飞机旅行。

It claimed several missiles were shot down by air defense systems.

它声称有几枚导弹被防空系统击落。

The fish draws this air out of the water by its gills.

金鱼是用鳃吸进水里的空气的。

Its ability to carry many passengers meant more people could travel by air.

它能够搭载许多客，这意味着更多的人可以坐飞机旅行。

We hear some emergency relief is getting through by air.

我们了解到，一些紧急救援物资正通过飞机送往灾害发生地。