Conclusions Although lead poisoning rate of the children was low in Hefei, health education for lead prevention should be strengthened in order to improve public awareness on lead protection.

结论合肥市儿童铅中毒发生率较低。但仍需要加强铅防护工作的宣传教育，提高群众的自我保护意识。

youdao

President Obama praised the Iraqi security forces which took the lead in providing protection for voters.

VOA: special.2010.03.13

Political considerations always influence decisions that lead to protection.

FORBES: The U.S. Loses Despite Victory In Chinese Tire Dispute

And he will be joined in that effort by my nominee to lead the Environmental Protection Agency.

WHITEHOUSE: Remarks by the President in Personnel Announcements

The organization funded the two vaccines -- created by Jonas Salk and Albert Sabin -- that would lead to the protection of most of the world against polio.

CNN: Why polio hasn't gone away yet