The calculation of versine is a part of trigonometry.

This 正數 is the same as what I learned in school.

Positive charge is a type of electric charge of matter.

They have a variety of opinions, making it difficult to agree.

She said 'to each his own', respecting the differences among people.

In Japanese, the second person can be expressed as 'anata', 'kimi', 'omae', etc.

My friend can play the erhu well.

He swore never to repeat that mistake twice.

He goes to the gym twice a day.

Let's go to see a movie together.