Amino acids are very important nutrients for our bodies.

Please put your luggage on the shelf in the train.

This photo can express details because it has a high density of halftone dots.

Morel is a type of delicious mushroom.

Morel is a delicious mushroom that can be found in the mountains in spring.

He set up the tennis net.

He is using a hand-held net to catch fish in the river.

Ami is my best friend.

She is good at knitting.

In physics, it is important to calculate the center of mass of an object.