不要相信“万能”胶。
理解一个问题就是答案的一半。
The passage of time is both a blessing and a curse.
敢于浪费一小时的人,尚未发现生命的价值。
Free trade is the key to the prosperity of a nation.
In mathematics, the simplest questions often lead to the deepest insights.
The harder you work, the luckier you get.