圣诞节的乐曲从一个被褐色橡皮带捆起来的黑色小收音机里稀舒的传出来，这个家庭已经在考虑如何庆祝这个一年中的最重要的日子。
With a Christmas tune occasionally squeaking out of a small black radio held together by brown rubber bands, the family was already thinking how they would celebrate the biggest day of the year.
“我们观测到大肠(埃希氏)杆菌的细胞在与石墨稀氧化物相互作用的时候被破坏了，”樊说，提供了第一个石墨稀氧化物杀死细菌的证据。
"We observed that E.coli cells were destroyed when they interacted with the graphene oxide," says Fan, providing the first evidence that graphene oxide kills bacteria.
我们用长远的眼光看最近十年，数百万的人移居中国西部区域，那里地广人稀，还有大量没有被使用的资源。
We foresee that in the coming decades, millions of people will migrate to the western regions, where the land is empty and resources unused.
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