His project reflects his ingenuity.

It is important for men to regularly clean smegma.

The treatment efficacy of this medicine is very high.

I'm always impressed by his skillful handiwork.

Geologists believe that this area was formed by a graben.

The precipitation in this area is 500 millimeters on average annually.

Due to this chemical reaction, the substance will precipitate.

I went to see a movie with my friend.

There is still no specific medicine for this cold.

He was like a double-dealer, expressing different opinions to two groups.