Long-term prospects for the economy have improved.

长期的经济前景已有所改善。

《牛津词典》

They have improved immeasurably since their arrival.

从他们抵达以来，他们已极大程度地改进了。

《柯林斯英汉双解大词典》

It is highly debatable whether conditions have improved for low-income families.

低收入家庭的生活状况是否已得到改善是一个颇有争议的问题。

《牛津词典》

American housing sales,though, have improved in recent months, helped by lower prices and a tax credit for first-time buyers.

VOA: special.2009.09.04

Now, we probably could have improved the accuracy if we had spent individual time with each of you and said, well now here's a serving of this and that's -here's a serving of that.

现在,我们大概可以提高准确性了,如果我们在你们每个人身上花些时间,并告诉你们这有一份这个,这有一份那个

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You have many students who have improved their English skills a lot.

你很多学生的英语技能都大幅度提高了。

留在记忆中的学生 - SpeakingMax英语口语达人

As panel yields have improved, Apple has been able to reduce orders, he says.

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"We knew after last season what we needed to do and we have improved, " Robben said.

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Over the last 30 years, cancer survival rates in the United States have improved markedly.

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