单词：oxygenators
n. An oxidizer.
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A: Is there any chance of my borrowing your typewriter ? [00:01.46]Ａ：能不能借用一下你的打字机呢？ [00:02.93]B:For how long ? [00:03.47]Ｂ：要借多久？ [00:04.02]A: Until the end of the week. [00:04.88]Ａ：借到周末。 [00
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Can Oxygen Be Toxic?氧气有毒吗？ In order for us to live we must have oxygen, so how can it be bad for us? Today we explain how oxygen can be toxic. 氧气是我们生存所必需的，所以它怎么会对我们有害呢？今天我们来解释为
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Colbie Caillat-Oxygen I came apart inside a world 我在这个由怒气冲冲的人们组成的 made of angry people 世界里支离破碎 I found a boy who had a dream 直到有一天我遇见一个寻梦的男孩 Making everyone smile 他令他身边
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