The core of Pinduoduo is "group buying," allowing users to participate in shopping through social means.
拼多多的核心是“拼”，通过社交的方式让用户参与到购物中来。
I have such a stressful job that the only way I can get it out of my mind is by running hard；it's the only way I can get some release.
The real tragedy of the poor is that they can afford nothing but self-denial.
The art of being wise is the art of knowing what to overlook.
丙型肝炎病毒是一个隐藏的敌人，但只要拥有正确的工具和决心，任何隐藏的敌人都能被发现。
Science is not just a collection of facts; it's a way of thinking.