The new approach has helped Matthews and his colleagues reduce CPU time usage and has let the DBAs prevent problem queries from becoming a drag on performance.

新方法帮助 Matthews 和他的同事减少了 CPU 时间的使用，并让 DBA 能够防止问题查询拖性能的后腿。

youdao

It is usually much better to prevent a problem from happening than it is to find ways to solve it.

VOA: special.2009.08.30

We can,for example, given the rate of investment, eliminate malaria as a public health problem, we can prevent millions of more HIV infections and also in tuberculosis.

VOA: special.2010.03.10

"This is a partial solution that appeals to people who want a quick fix and it is not going to solve the problem, it will not prevent the recruitment of terrorists we have seen.

VOA: standard.2009.09.10

The genetic engineering of plants to enhance their pest-resistance offers a way to prevent the problem.

FORBES: Bittman of the 'New York Times': Always Out To Lunch

There aren't any sure fire ways to prevent either problem.

WSJ: Problems in Pregnancy Signal Future Health Risks

If cramps bother you frequently, consult with your doctor, who may advise you to keep a cramp diary to try to pinpoint or prevent the problem -- what were you doing at the time, how long did it last, what did you do to make it feel better, what did you do earlier in the day?

CNN: What causes muscle cramps?