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The residue includes heavy metals, carcinogens and even radioactive materials that young children can get on their hands and ingest, especially if they're crawling or playing on the floor.

这些包括重金属，致癌物资甚至放射性物资在内的残余物，沾满了婴幼儿的双手甚至被他们的呼吸道吸收。当婴幼儿在地板上爬行或者玩耍时，所受的污染尤甚。

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Sitemaps 0.90 is an important step toward this goal and allows simple and efficient crawling even of complex and dynamic modern Web sites.

Sitemaps 0.90 是实现这一目标的重大突破，甚至在复杂和动态的现代 Web 站点中，它也能提供简单和有效的爬行。

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Even before the recession GDP was barely crawling along, with growth averaging a miserly 0.7% a year over the past decade (see chart).

ECONOMIST: Chronically weak growth is Portugal��s gravest problem

The spiders even interact with real things on the desk, crawling over books and disappearing under pieces of paper.

MSN: Virtual Reality Spiders Crawl Toward Phobia Treatment

But Les kept crawling, kept pulling himself along, closer to that bunker, even as the bullets hit the ground all around him.

WHITEHOUSE: President Obama Awards the Medal of Honor to Specialist Leslie H. Sabo, Jr. | The White House