Mr Brown's efforts in recent months have already produced results.
布朗先生几个月的努力已初见成效。
But some scientists in recent months have raised questions about the field.
但是有些科学家最近几个月中就此提出疑问。
Recent months have proved the numerous security threats in Japan's neighborhood.
数月来接连发生的事件使得日本不得不防备邻邦的安全威胁。
American housing sales,though, have improved in recent months, helped by lower prices and a tax credit for first-time buyers.
VOA: special.2009.09.04
He said officials have discovered a number of plots in recent months involving "homegrown extremists."
VOA: special.2009.10.17
His high public approval ratings have fallen in recent months.
VOA: special.2010.01.23
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