They prevent fish migrations and change aquatic habitats essential for native species.

它们阻止了鱼类迁徙，并改变了对本地物种至关重要的水生栖息地。

youdao

Looking to the future, though, we asked him what the prospects are for a vaccine to prevent infection in the first place.

然而，展望未来时，我们首先问他一种预防传染的疫苗前景如何。

《柯林斯英汉双解大词典》

If Apple is forced to open up an iPhone for an American law enforcement investigation, what is to prevent it from doing so for a request from the Russians or the Iranians?

如果苹果公司被迫为美国执法机构破解了一部 iPhone 以协助案件调查的话，那俄国或者伊朗也提出同样要求，苹果公司又该如何拒绝呢？

youdao

For example,a group called Shark Safe helped prevent the killing of sharks at a fishing competition in Florida earlier this month.

VOA: special.2009.06.16

We'll talk about humble in a minute, but I'm interested now in the word prevent, which for me is really the central word of this remarkable stanza.

我们待会再讲这个谦逊，我现在对阻止这个词很感兴趣，我认为这是这一行的中心词。

耶鲁公开课 - 弥尔顿课程节选

You also know that there's some vaccines that are not yet available, for diseases that we would very much like to prevent.

你们知道现在还有一些疫苗,仍没有研制出来,都是针对那些亟需预防的疾病的

耶鲁公开课 - 生物医学工程探索课程节选

Members wanted to prevent for-profit businesses from paying poor people in the Third World to give up their livers for rich American patients.

WSJ: Wait-Listed to Death

We are satisfied that there is no reason, on air quality grounds, to prevent consent for the plant being granted.

BBC: Dundee Biomass Centre

We imposed tough restrictions to prevent funds for our recovery from lining the pockets of the well-connected, instead of creating jobs for Americans.

WHITEHOUSE: Weekly Address: Fighting for the Public Against Special Interests | The White House