He inserted the key into the keyhole.

He inserted a flower into the vase.

In Hokkaido dialect, he vomited.

There's a proverb that says 'speak of the devil and he shall appear,' and sure enough, he showed up.

They used Euclid's algorithm to find the greatest common divisor.

Please teach me how to find the greatest common divisor.

You should not be deceived by the deceptive advertising of this product.

He is known as a maestro of the orchestra.

The process of name resolution is very important in computer networks.

Ei is good at reciting poetry.