1. The problem, Schweitzer says, is the actual trades were not profitable.
施韦策表示，问题在于，实际交易是无利可图的。
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2. It is probable that the nocturnal trades a way back in the ancestry of all mammals.
这种夜间的“交易”也许可以一直追溯到所有哺乳动物的祖先身上。
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3. Given that there is a living to be made at night, and given that alternative daytime trades are thoroughly occupied, natural selection has favoured bats that make a go of the night-hunting trade.
4. Of all the trades in the world, there is only one that really suits me.
世界上所有的行业中，只有一个真正适合我。
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5. When the recovery began, worker shortages first appeared in the high-skilled trades.
当经济开始复苏时，劳动者短缺首先出现在了高技能行业。
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6. Accordingly, newspapers were read almost only by rich people in politics or the trades.
因此，几乎只有政界或商界的富人读报纸。
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7. As master craft workers, they imparted the knowledge of their trades to apprentices and journeymen.
作为手艺大师，他们把他们行业的知识传授给学徒和学徒期满的职工。
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8. In The Little Mermaid, Ariel literally trades in her voice for the chance that a prince she's never met will love her in return.
在《小美人鱼》中，Ariel 用自己的声音换取了一个从未谋面的王子爱她的机会。
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9. The group is now unafraid of the occasional tempo shift, and on some songs, drummer Will Champion even trades in his brushes for real live drumsticks!
