Coitus interruptus is one of the methods of contraception, but its effectiveness is not 100%.

He conquered all his enemies.

He conquered the national chess tournament.

Please tell me the way to solve this problem.

It is very important to learn about contraception methods.

We understand the importance of practicing birth control.

He ate one apple.

The effect of this medicine appears immediately.

He is respected as the ruler of this country.

This road has a steep slant.