Two U-shaped zip pockets 两个U型拉链袋
two-sample u-statistics 两样本u统计量
One of the U.N.Millennium Development Goals is to reduce the under-five death rate by two-thirds by two thousand fifteen.
VOA: special.2009.09.28
It turns out the U.S. and Jamaica are the only two places on Earth now that use the Fahrenheit scale.
事实上现在地球上,只有美国和牙买加这两个国家,还在使用华氏温标。
One is if you have to coordinate how you're going to give this vaccine to two million children across the U.S.
首先必须协调合作,如何才能将疫苗,分发给全美国二百万孩子
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