尹晶雪说，“在移动互联网使用人群中，如微博和微信等即时通讯应用的使用率最高，接下来是网络购物应用，包括淘宝和京东。”
"Instant messaging applications such as Weibo and Wechat are still used the most among mobile Internet users, followed by online shopping apps, including Taobao and Jingdong, " Yin said.
为什么在温度变化时雪晶的形状也随着变化，从薄且平的盘状变成长且细的针状，这仍是一个科学之谜。
Why snow crystal shapes change from thin, flat plates to long, slender needles when the temperature changes remains something of a scientific mystery.
他坚信，这种变化决定了雪晶的形状。
That variation, he believes, dictates the way snow crystals grow.
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