What does it mean lead 含铅是什么意思
By "what are you going to do," I mean, what kind of life are you going to lead?
我说的“你要做什么”的意思是你要过什么样的生活?
The mean blood lead levels in the 12-to-19-year-olds were 1.5 micrograms per deciliter in 1991 to 1994 and 1.1 micrograms per deciliter from 1999 to 2000, researchers say.
研究人员说,从1991年到1994年,12至19周岁美国人的平均血铅水平在0.015微克每毫升;1999年到2000年这一数字变为0.011微克。
According to the BLS, surgeons lead the pack with a mean salary of $219,770 in 2009.
根据劳动统计局的数据,2009年外科医生荣膺高薪职业榜首,平均年薪219770美元。
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