You can improve your grades

成绩───achievement

His head is easily turned by even a small achievement.───他这个人有了一点成绩就得意忘形.

His reading achievement is depressed.───他的阅读能力低于一般水平.

Such a goal is impossible of achievement.───这样的一个目标是不可能完成的.

It was unkind to denigrate her achievement.───贬低她的成就是刻薄的.

He rated the achievement high.───他高度评价了这一成就.

The achievement of one's purpose depends largely on one's perseverance.───一个人的志愿的实现大部分靠他的毅力.

Running ten miles is no mean achievement.───跑十英里是了不起的成绩.

Steve uncorked bottles of champagne to toast the achievement.───史蒂夫打开几瓶香槟酒庆功。

He has an impressive record of achievement.───他所取得的一系列成就令人赞叹。

These five schools are in the state's top 5% in achievement scores, one school topping the score for the whole state.───这5所学校的成绩在该州居前5%，其中一所的成绩高于全州所有其他学校。