He is working round the clock.

His shots are always on target.

He is suffering from muscle pain in his middle scalene muscle.

The middle pharyngeal constrictor is an important muscle that helps with swallowing.

This system transfers data using synchronous transfer mode.

Infrared astronomy plays a very important role in the study of the universe.

Infrared astronomy provides a new perspective on understanding the universe.

Understanding the concept of 'Ha-line conversion sounds' is important in learning Japanese.

He is exactly in the state of 'A frog in a well does not know the vast ocean.'

He was swimming freely as if he was a fish playing in the pot.