在美国，五月和六月是传统的毕业季。
In America, May and June are the traditional months for graduations.
这副图展示的变化之间的五月和六月到2010年。
This pair of images shows the changes between May and June 2010.
这个变化之间的积雪五月和六月证实冰雪融化在可能发生的很快。
The change in snow cover between May and June confirms that snow melt happened quickly in May 2010.
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