My younger sister got infected with pinworms.

This 蟯蟲 is a very rare type of parasite.

When summer comes, we take measures to repel insects inside the house.

She is the owner of a 'kijitsu'.

It's a natural phenomenon for newborns to secrete witch's milk.

Central China is one of the economic centers of China.

He overcame the problem of alcoholism.

It's difficult to calculate the volume of this prism.

He was entirely engrossed in his work.

He is experiencing the stage of bardo, according to the teachings of Tibetan Buddhism.