He has already realized the importance to improve himself in English.

他已经认识到提高自己的英语水平的重要性。

youdao

He tries to improve the quality of life. Even in the face of national and international difficulty, he does not see himself as helpless.

他尽力提高自己的生活水平，即使面对国内或国际困难，他也不会认为自己无能为力。

youdao

He enjoys working in a team, so that he can improve himself better.

他喜欢团队工作，这样可以让他更好地提高自己。

youdao

Even Sinatra, Ol' Blue Eyes himself, seemed to improve with age and got in fewer fistfights to boot.

FORBES: Wrinkle cream

He has a desire to improve on himself and I have never seen that desire in him before.

BBC

After each race, he breaks down the performance of himself and competitors in search of ways to improve.

FORBES: The World's Greatest Athlete