He is not afraid to speak bluntly and always expresses his opinions straightforwardly.

He is always someone who speaks bluntly and to the point.

His promise was empty words.

In this radiation therapy, we use röntgen to destroy cancer cells.

I am planning to go to Gangwon next week.

He denied his previous remarks.

A determiner plays a role in specifying a noun.

What is the amplitude of this sine wave?

The sine, which is one of the trigonometric functions, represents the ratio of the radius of a circle to the opposite side of a right triangle.

This grave atmosphere reminds us of how important a place we are in.