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                n.等级,阶梯座位等的一排,一行,一层,包扎工vt.层层排列,使层叠vi.成递升排列,层叠... 
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                tier的复数形式为:tiers... 
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                We sat in the upper tier at the stadium.我们坐在体育场的上排.Each tier of cells is earmarked for a particular function.每层细胞都有明确的特殊功能标记.Heated air is forced into the upper tier of ducts.加热的气流被送入上面的一排管道.... 
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                tier的第三人称单数(三单)为:tiers... 
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                Quel que soit ton m é tier , on doit te respecter.不管你从事什么职业,大家都应尊重你.Colette and Lee pose by the three - tier wedding cake.科莱特和李站在他们的三层婚礼蛋糕旁.Heated air is forced into the upper tier of ducts.加热的气流被送入上面的一排管道.Current uses b... 
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                tier的现在进行时为:tiering... 
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                tier的一般过去时为:tiered... 
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                tier的音标:tier的英式发音音标为:[tɪə(r)]tier的美式发音音标为:[tɪr]...