解释：要量力而行，实力达得到就进攻，达不到就撤退。
Diversity in science leads to better solutions.
自然选择是一种产生极高程度不可能性的机制。
The historian’s task is to bring the dead to life.
I'm saving my voice for the stage. I don't talk much in real life.
天下的事情有难易之分吗？只要去做，难的也会变容易；不去做，容易的也会变难
We are all broken, that's how the light gets in.
气候变化不是未来的威胁，它正在改变我们今天的田地。