到19世纪50年代中期，将女性纳入政党政治仪式已成为司空见惯的事，而为这种纳入辩护的意识形态已被民主党同化。

By the mid-1850's the inclusion of women in the rituals of party politics had become commonplace and the ideology that justified such inclusion had been assimilated by the Democrats.

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这样司空见惯的事，不会使人吃惊。

A matter of repeated occurrence like this will not astonish people.

《新英汉大辞典》

但是这种曾经极少发生的策略已成为司空见惯的事了。

But the manoeuvre, once rare, has become commonplace.

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