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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While America has had numerous third parties, one of our system's strengths is that it in effect forces one of the major parties to co-opt and smooth out the rough edges of issues that third parties may advocate.

FORBES: Election Stranger Than Fiction

His spokesman, a loyal but rough spin-doctor, was replaced earlier this year by a smooth-talking Catalan who is not even a member of Mr Aznar's party.

ECONOMIST: Spain: The Aznar touch | The

If the Verano's product planners have ambitions of entry-luxury competitiveness, they will have to smooth off some of the Verano's rough edges: Here the shift shocks the slight jarring as the six-speed automatic upshifts are noticeable.

WSJ: 2012 Buick Verano 1SG Review: East Meets Something Less Than Zest | Rumble Seat by Dan Neil