带上零食和水补充能量，鞋子要舒适，多穿几件衣服，甚至要把手机充电器带上。
Take along healthy snacks and water to keep your energy up, wear comfortable shoes, dress in layers and, yes, even bring a phone charger.
大部分教室往往是寒冷的，所以尽量在上课时多穿几件衣服，可以在课堂上调整。
Most classrooms tend to be chilly, so try to dress in layers that can be adjusted during class.
参加哈尔滨冰雪狂欢节的游客需要多穿几件衣服，当数位相机停止工作时，你也不必惊慌，因为那儿的天气实在是太寒冷了。
Visitors to Harbin's popular ice and snow festival should dress in layers -- and don't be surprised if you're digital camera acts up because of the cold weather.
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