The Xi River is one of the major rivers in China.

The sculpture he made is very elaborate, with attention to every detail.

This watch is made with great elaborateness.

His character and conduct are always sincere, and he is respected by everyone.

He is an expert in steelmaking.

He is learning the technology to make steel.

This sword is made of the highest quality refined steel.

His Japanese is still crude.

His speech was crude, and it was unpleasant to listen to.

Education about sexual relations is important for young people to make healthy choices.