She needs to feel whether something is rough or smooth.

她需要感觉某物是粗糙的还是光滑的。

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These bats can distinguish between the two, and not just with trees, but with any echo that comes in a smooth or rough shape.

这些蝙蝠能够区分这两种声音，不仅仅是通过树木的回声，而是通过任何平滑或粗糙的回声。

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Such activities teach children crucial life skills such as team spirit and learning to take the rough with the smooth.

这种活动教会孩子们一些至关重要的生活技能，如团队精神和学会泰然自若。

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Keen to take the positives from his experiences, he believes the rough and smooth of his life in England have helped him improve his work.

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The GMB union has disputed the figures and said that global companies had to learn "to take the rough with the smooth".

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"You have to take the rough with the smooth, " he said.

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