The use of cheap labour helped to keep costs down.

使用廉价劳动力有助于降低成本。

《牛津词典》

But they also suggested ways to keep costs down.

但是他们通常会建议用一些方法来使花费降低。

youdao

As a result, they are forced to find alternative ways to keep costs down.

因此，他们不得不寻找其它方法来降低成本。

youdao

And,the students would share in cleaning and cooking to keep costs down.

VOA: special.2010.06.27

Liberals within the Democratic Party have been fighting for a public option, saying that it is the only way to spur private insurance companies to keep costs down and offer affordable plans to consumers.

VOA: standard.2009.10.26

And colleges and universities have to do their part by working to keep costs down.

WHITEHOUSE: 2012 State Of The Union Address Enhanced Version

The cholesterol-lowering studies pose similar dilemmas for doctors and patients hoping to keep costs down.

FORBES: Cost Of Saving A Life Gets Higher

The government also requires insurers to keep costs down so things don't get too expensive.

NPR: Most Patients Happy With German Health Care