A bid may be withdrawn before the fall of the hammer.

在锤子落下来之前，出价可以收回。

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These measures should make households less vulnerable to the hammer blows that will fall when the Bank of Canada raises rates.

有了这些措施，即使加拿大央行挥下升高利息这一铁锤，广大家庭应该也能熬过这一打击。

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Last Fall Facebook put the hammer down, and let publishers know that the viral spread of games via notifications was going away.

但现在事情起了变化。去年秋天，Facebook就告知发行商其将禁止通过“通知”功能推广游戏。

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Paulson got the biggest three U.S. banks together earlier this fall to hammer out some way of alleviating the crisis, and what they came up with was also met with harsh criticism.

FORBES: A Subprime Solution