Yesterday, our country's airspace was violated by the enemy nation.

North Korea has violated our country's airspace again.

He skillfully dodged the enemy's attack by making it miss.

I am preserving food in a vacuum pack.

My friend came from Kuwait.

This report is very detailed.

I will go to the airport tomorrow.

I used a digital recorder to record the content of the meeting.

This old radio uses a vacuum tube.

He wasted time on the way to the library.