I'm glad I went to Japan.

I wish you would come earlier.

Water is fine.

A skew-symmetric matrix has the characteristic that its transpose matrix is the inverse of the original matrix.

A change in the political party that holds power could greatly change the future of the country.

In this experiment, the sample is heated for a certain period of time.

This dish has cooled down, so please heat it up again.

Koon is my best friend.

I maintain my health by exposing myself to fresh outside air every morning.

I maintain my health by exposing myself to fresh outside air every morning.