化学测试显示，在她去世前的两年里，她大约每两个月搬家一次。
Chemical testing showed that over the two years before her death, she moved about every two months.
我每两个月清理一次电话簿，删除那些我不再需要的联系人。
I clean out my phone every couple of months, deleting people I don't need anymore.
应该说，美联储的QE2已经酝酿一段时间了，人民银行与美联储在多种场合进行了多次沟通，国际清算银行每两个月举行一次的例会就是其中一个渠道。
The Federal Reserve has contemplated on QE2 for some time, and the PBC and the Fed had communications on a number of occasions, including the regular bimonthly BIS meeting.
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