The enemy plane was shot down the moment ( that ) it intruded into our air space.
这架敌机一侵入我国领空就被击落.
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A method was developed for the determination of diphacinone ammonium salt by HPLC.
采用高效液相色谱法测定双氯敌鼠铵盐的含量.
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Since the 1950 s our average life span has been stretching by about 2 years every decade.
但其实人类正对抗健康的大敌人,例如:心脏病.
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Thanks. It was a very close match. You deserved to win. Your serve was perfect.
谢谢, 这真是一场势均力敌的比赛. 你应该获胜, 你的发球很好.
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Well it was a close match. But you deserved to win, and you did.
这是一场势均力敌的比赛,不过你是应该赢得, 而你确实也赢了.
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