每年有三次大的话题变化时间，那分别是一月、五月和九月，那这样讲并不意味着其他的月份不会出现换题，只是其他月份话题变化的幅度相对比较小。

In January, May and September, there are three times of changes every year. But it doesn't mean that there aren't other changes in other topics.

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在结婚之前Jannifer和她的未婚夫还保持着一周三次的频率，可他们宣誓结婚之后，骤降到一月一次——有时大概还没这个数。

As an engaged couple, Jennifer and her fiancé were doing it about three times a week, but once they said their vows, it quickly dwindled to about once a month—sometimes less.

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尽管每周开奖三次，但是自一月份以来，一直无人中头奖。

The jackpot hasn't been won since January, despite being drawn three times a week. BBC News.

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