He said the first human tests involve 40 human volunteers in the U. s.

他说，首次人体测试涉及到了美国的40名人类志愿者。

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Like many children growing up in the U. S., some of my earliest memories of television involve watching Sesame Street.

就像在美国长大的很多孩子一样，我幼年最初的记忆就是坐在电视机前看芝麻街节目。

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Over the next two decades, the weddings grew in scale and began to involve followers from Japan, Europe, Africa, Latin America, the U. S. and elsewhere.

在接下来的二十年中，婚礼规模扩大并且开始有来自日本、欧洲、非洲、拉丁美洲、美国和在其它地方的追随者。

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The USDA survey doesn't attempt to directly gauge the prevalence of hunger in the U. S. , which would involve determining how many Americans don't receive an adequate number of calories daily.

农业部此次调查并非用以衡量美国的饥饿人口数量，后者需要确定有多少美国人存在日卡路里摄取不足的问题。

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The USDA survey doesn't attempt to directly gauge the prevalence of hunger in the U. S. , which would involve determining how many Americans don't receive an adequate number of calories daily.

农业部此次调查并非用以衡量美国的饥饿人口数量，后者需要确定有多少美国人存在日卡路里摄取不足的问题。

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