He spent several years mastering the bowing technique of the violin.

I want to go to Bohol province in the Philippines.

We must start by filling the outer moat first.

The umpire declared a balk on the pitcher.

The Atlantic puffin is one of the most commonly seen birds in the North Atlantic.

Kanna has two dogs.

Mr. Zhai is my best friend.

He checked whether he remembered or not.

The ship sank into the sea.

My mother woke me up.