cock n.公鸡, （水管等的）旋塞
    fire cock 消火栓
    discharge cock排水旋塞
    drain cock
    排气阀［旋塞］； 放水旋塞［龙头］
    draw-off cock
    放出开关， 放水旋塞［龙头］

    coin n. 硬币
    vt. 创造，杜撰（新词、新语等）
    coin one´s brains动脑筋挣钱
    coin new silver dollars铸造新银元

    collapse v./n.倒塌；崩溃；(价格)暴跌；倒闭，破产
    The unexpected rainstorm caused the collapse of the roof.
    突然来临的暴风雨把屋顶刮塌了。
    If you work too hard, your health may collapse.
    如果你工作太累的话，你可能病倒。

    collect v.收集；领取；收税，收帐

    collective adj.集体的
    n.集体
    collective action 集体行动
    collective goods 集体财产， 公共设施
    class collective 班集体

    collection n.收集；募捐；收藏品；收款，收帐

    column n.圆柱, 柱壮物, 专栏, 纵队

    comb n.梳子, vi.梳(发),

    commerce n.商业；贸易
    commence v.开始, 着手
    commence on 着手
    commence with 从...开始
    We commence building on March 18th.
    我们于三月十八日开工。

    commercial a.商业的，商务性的
     　　　　　 n.商业广告
    The aim of the repetitions of the same commercial on television is nothing but to brainwash consumers into compulsive sonsumption.
    电视上反复地播放同一个广告的目的无非是想宣传得使消费者非用不可。

    commission n.委员会；佣金；手续费；授权；代办；委托
    United Nations Commission-on International Trade Law联合国国际贸易法律委员会
    commission agent代理人， 经纪人
    commission house证券经纪公司［交易所］
    Some salesmen in big shops receive a commission of 10％ on everything they sell, as well as a salary.
    大商店有些店员不仅有薪金， 而且还可抽取所售货物百分之十的佣金。

    commodity n.商品；日用品

    compensate v.赔偿，补偿
    compensation n.报酬，赔偿金

    compete vi.竞争，比赛

    competition n.竞争（with， in），
    比赛(in), 对抗(against， with)
    compete with other countries for world market
    与其它国家竞争国际市场
    compete in a race
    参加赛跑
    compete with [against] sb. for sth.
    与某人竞争而获得某物
    The young tennis player has often competed against famous players, but so far he has always been beaten.
    那位年轻的网球运动员常与著名球员对抗比赛，可是到目前为止，他总是输的。

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