Her work is showing some signs of improvement.

她的工作出现了一些改进的迹象。

《牛津词典》

However, the pace of improvement has slowed markedly.

然而，改善的步伐已明显放缓。

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For instance, she says signs of improvement can be seen in places such as Tanzania and Rwanda.

VOA: standard.2009.05.21

And the fact is, food is healthier if it has less trans fat, but it depends on what fat's swapped out for it, because if you put a healthier fat in then it's--then you get a certain amount of improvement.

事实是,如果食物中反式脂肪的含量较低,确实会更健康,但这取决于被剔除的脂肪种类,因为如果加入较为健康的脂肪,食物的质量会获得一定程度的改善

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

But this policy of giving greater weight, if you show improvement, is something that most of you will benefit from.

但整个方针是进步处占更大比重，如果你表现进步的话，你们中的大多数会从中获益。

耶鲁公开课 - 死亡课程节选

Contribute to the maintenance of the post establishment system, making recommendations for areas of improvement.

UNESCO: Vacancy : Classification Officer (16/7/2011) (HRM 253 - (P3))

Well 44 years ago, an American athlete was responsible for an even bigger margin of improvement.

BBC: Can Tyson Gay break Smith's record in Manchester?

As for pensions, a bit of improvement in the financial markets will provide enormous relief.

FORBES: Fact and Comment