w celu poprawy 英語で:

people are trying to improve their diets

I'd like to improve my English.

I'm going to improve my score, time me.

Try to improve your speaking skills.

I want to improve my English.

I have to improve my German.

I want to improve my drawing skills.

Doing mental exercise is a very good method to improve your memory.

to improve the offer

They've been trying to improve the children's diet.

They have to improve the image of the company.

to enhance service market share

This is the only way we can enhance our own security. We try to enhance the quality of life through education.

This is an opportunity to enhance the reputation of the government.