真相很残酷。一旦给狗戴上皇冠，就很难给它戴上项圈了。

The structure of DNA was a puzzle that demanded to be solved.

"Life is what happens when you're busy making other plans."

金属矿业要抓住数字化转型机遇，提升智能化水平。

Efficiency in extraction is meaningless if we don't consider the long-term impact.

如果拜登当选，你将要付7元、8元、9元。