This is the letter sent from Hong Kong by air mail.

I paid 2,000 yen for the parcel to be sent by air.

They arrive by air, by train, by car...

Send this letter by air.

Do you travel by sea or by air?

Are you going by air or by train?

Sent here by john.

John went to America by air.

Have you ever traveled by air?

I don't like traveling by air.

They left for Europe by air.

He doesn't like traveling by air.

He likes travelling abroad by air.

He left for America by air.

I don't like traveling by air.

I prefer to travel by air.

My father likes traveling by air.

Backed up by significant air support.

Standing by to go to air.

The air was polluted by exhaust gas.

We are traveling to France by air.

Many goods are now transported by air.

Nothing is so pleasant as traveling by air.

Though it is expensive, we'll go by air.

It's susceptible to motion by the air currents.

The spy sent information by code.

She sent the letter by airmail.

He sent a message by wireless.

She sent the letter by airmail.

She sent the letter by airmail.

By the angelic emissaries sent successively,

Should I've sent him by courier?

We know that microbes are dispersed around by people and by air.

The air by the sea is pure and healthy.

When I travel, I prefer to travel by air.

My father traveled all over the world by air.

When I travel, I prefer to travel by air.

Millions of people have been killed by polluted air.

It's symbolized by fists in the air, just pumping

The Japanese has attacked Pearl Harbor Hawaii by air.

He sent me his congratulations by wire.

He sent me the message by telephone.

By the winds sent forth with beneficence.

By those winds sent forth in gusts

After having sent your images by email...