treads
v.
踩，踏( tread的第三人称单数 );
踩成;
踏出;
步行于;
例句:
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The stair treads were covered with rubber to prevent slipping.
楼梯踏板上覆盖着橡胶以防滑.
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During Christmas everybody treads on air.
圣诞节期间每个人都喜气洋洋.
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He walked up the stairs. The treads were covered with a kind of rubber and very quiet.
他走上楼梯。梯面上铺了一种橡胶，因此没有什么声响。
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Young Hunger mostly treads lukewarm waters.
来自BBC
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He who steps into the arena of alternative chamber rock treads a closely-packed minefield.
来自BBC
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Not always a bad thing, indeed it treads the line between classic and anachronistic with all the swagger of its creators.
来自BBC