Mr. Yen is my best friend.

This old painting depicts the perfection and harmony as a symbol of roundness.

A round table is placed in the center of the room.

Maru is my best friend, always helping me.

Maru is my best friend, and she always helps me.

He was suffering from inflammation of the epiglottis.

He underwent surgery due to a problem with his epiglottis.

He fell into a state of lethargy after the exam.

Understanding the transition state of a chemical reaction is important for predicting the progress of the reaction.

The negotiations have fallen into a deadlock.