一年有多少个月？他们是哪些月？
一年有多少个月？
官方统计数据能够告诉你上个月有多少人失业，多少个有大学文凭及多少人从事建筑业。
OFFICIAL statistics can tell you how many workers were jobless last month, how many had college degrees and how many worked in construction.
一个月里有多少个星期呢？
研究者还问了学生们，上个月两人有多少次在对方时间轴上留言，以及两人在脸书上有多少个共同好友。 。
Researchers % also asked the students how many times each person in the couple had written on the other's timeline in the last month, and the number of mutual Facebook friends they shared.
研究者还问了学生们，上个月两人有多少次在对方时间轴上留言，以及两人在脸书上有多少个共同好友。 。
Researchers % also asked the students how many times each person in the couple had written on the other's timeline in the last month, and the number of mutual Facebook friends they shared.
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