Do you know why winter is colder then summer?

你知道冬天比夏天冷的原因吗？

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Then in the summer of 2009, he trekked about 670 miles from Atlanta to Washington, in just two months.

2009年的夏天，他从亚特兰大长途跋涉到华盛顿，全程670英里，只用了两个月的时间。

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If water levels fall in summer, as they do in most of North America, then beavers' lodge entrances may be exposed.

如果像北美大部分地区一样夏季水位下降，那么海狸的小屋入口就会暴露出来。

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Then she learned of summer jobs in Atlantic City,New Jersey, that paid more money.

VOA: special.2009.10.04

And I called him up and I said, "Look, I'm going to go check out these other summer jobs but then I'll come visit you."

然后我给他回电，说，“我得查一下其他的暑期工,不过之后我会去看你的。“

斯坦福公开课 - 微软CEO-Steve.Ballmer谈科技的未来课程节选

and then, from there, well yeah, have another round or so, and then yeah, you get an internship for the summer.

然后经过一或更多轮的赛选，你就可以找到暑期实习了。

实习生到正式员工 - SpeakingMax英语口语达人

But the southern half of Mars has warmed up slowly into spring and then summer over the last six months.

CNN: Summer is 'sublime' in sunny south of Mars

Then summer came and went without a promised update that would include a simpler interface and a marketplace for Android apps made for the small screen.

FORBES: Can Google TV Rise From the Dead? With Update, Stay Tuned.

And then the summer arrived and with it came A-lister Nicolas Cage's big-screen disappointment, Bangkok Dangerous.

FORBES: Magazine Article