ply
[plaɪ]
vt.& vi.
使用（工具）;
经常供应（食物、饮料）;
固定往来;
经营生意;
n.
（毛线、绳等的）股;
层;
厚;
（夹板的）层片;
vt.
（娴熟地）使用;
例句:
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You need 3 balls of any 4-ply knitting wool.
需要随便3团4股羊毛线。
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It's illegal for unmarked mini-cabs to ply for hire.
无标志的电话预订出租车沿街拉客是非法的。
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The brightly-coloured boats ply between the islands.
色彩明艳的船只往来于岛屿之间。
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They on the...Flood...Ply stemming nightly toward the Pole.
来自Milton
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We ply our craft deep into the night, behind locked doors.
来自WSJ
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Boats become the frail barques which ply their passages across the Styx.
来自THETIMES