upset the balance 和 break the balance 区别

upset the balance 打乱均势
His wife's sudden death upset the balance ofhis mind。
他妻子突然去世, 他感到六神无主。
If we don't stop destroying forests, we may upset the balance of nature。
如果我们再不停止破坏森林,我们将破坏大自然的平衡。
break the balance 破坏平衡
We can break the balance of nature by increasing the category and quantity of pests' natural enemy so as to limit their growth and thus prevent the harm。
而增加对害虫天敌的种类或数量,来打破自然界的相对平衡,使之不利于害虫种群的增长,从而减少和防止它们的为害