世界建立在化学之上,而我们才刚刚开始理解它是如何构建的。
When the third appeared, he thrust at it with the knife, only to feel the blade[刀片] snap as the fish rolled. 
成功不是终点,失败也不是致命的:重要的是继续前进的勇气。
The only time I’m truly happy is when I’m in the water.