双语例句原声例句权威例句
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California has become the first us state to ban the use of sunbeds for anyone under the age of 18.
加利福尼亚州成为美国第一个禁止未满18岁少年使用人工日晒床的州。
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The helicopters used in the raid weren’t the first US military helicopters with stealth capability.
这次突袭行动中使用的直升机不是美军历史上第一架具有隐身能力的直升机。
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Alan Shepard, the first US astronaut, would not be launched until almost a month later and then on a comparatively short suborbital flight.
阿兰·谢巴德，第一位美国宇航员，在近一个月之后才进入了太空，相比之下只进行了短暂的不满一整圈轨道的飞行。
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"By twenty twenty-five, we expect new spacecraft designed for long journeys to allow us to begin the first-ever crewed missions beyond the moon into deep space.
VOA: special.2011.07.18
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And what's fallen out when we do that, because in each case, one of the first derivatives gives us the entropy.
当我们这样做时就得到了结果，因为在这些例子中，一阶导数是熵。
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So this is to say, for those of you who are joining us today for the first time, that's totally fine.
也就是说，对于你们中第一次加入我们的同学而言,是相当不错的。
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