除非你开始改变内在，否则无法改变周围的一切。

Collaboration across borders is key to solving global food challenges.

"The beauty of quantum mechanics lies in its ability to reveal the hidden connections between seemingly unrelated phenomena."

现实一点，要求不可能的事！

反过来，始终反过来：把情况或问题颠倒过来，从反面看。