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 UID307600 帖子2907 积分7213 学分13422 个 金币41 个 在线时间649 小时 
    
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                 review: 
 1,为了得到大量的资金,工人们常常加班加到很晚。
 the workers often work overtime for substantial amounts of money.
 2,大量的氢被发现在火星的两极地区。
 substantial amounts of hydrogen were found at the Mars Poles.
 
 at will"随意,任意"
 
 for instance:
 
 1,you can vary the pressure at will.
 你可以随意变换压力。
 2,can they be allowed to violate rules and regulations at will.
 难道能容许他们随心所欲的破坏规章制度吗。
 
 
 practice:
 
 1,根据劳动法,老板们再也不可以任意解雇工人了。
 2,信用供给似乎无穷无尽,银行业可以随意扩张。
 
 
 try to translate these sentences into english.
 
 references:
 
 
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