The lead poses little threat if undisturbed but "replacing old windows or drilling into walls to blow in insulation, for example, can contaminate the house with lead dust," CELA said.

在没有施加外力影响的情况下，铅的危害并不大。 但是CELA解释说：“比如，在更新旧的窗户或者钻进墙壁中嵌入绝缘材料的时候，可能使房间受到铅尘的污染。”

youdao

On the other hand, in the case of great health dangers of modern times - mercury, lead, tobacco, asbestos - journalists were too slow to blow the whistle.

另一方面，水银，铅，烟草，石棉，当今社会还有诸如此类许许多多的健康威胁，新闻记者都无法予以及时揭露。

youdao

Thou didst blow with thy wind, the sea covered them: they sank as lead in the mighty waters.

你叫风一吹，海就把他们淹没，他们如铅沉在大水之中。

youdao

The lead was a blow for Mr. Rothman, who chose to run against Mr. Pascrell after redistricting last year placed more of his old turf in the new Ninth Congressional District.

WSJ: N.J.'s Pascrell, Payne Score In Primaries

It is a necessary but not necessarily sufficient blow to lead to its demise.

WHITEHOUSE: Press Briefing

Liverpool did, in fact, blow their lead and ended up behind United.

WSJ: English Premier League: Sir Alex Ferguson's Mind Games