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李:
The weather is colder and colder. 
天气越来越冷了。
林:
Yeah, and the Christmas is on the way.
是啊，圣诞节快到了呢。
李:
Oh, how time flies.
哦，时间过得真快啊。
林:
Yeah, last night, I read such a report.
是啊，昨晚，我看了一个报道。
李:
Is it funny?
有趣吗？
林:
Very and listen to me. The people in the Southern Hemisphere always spend their Christmas in the summer?
非常有趣，听我说，在南半球的人们总是在夏天度过他们的圣诞节。
李:
Why?
为什么？
林:
It’s because it is the Southern Hemisphere.
因为是南半球。