生活艰难,事情并不总是顺利,但我们应该勇敢冒险,毫不犹豫地迈出下一步。
"Life is tough, and things don’t always work out well, but we should be brave and take risks. We shouldn’t hesitate to take the next step."
物理学的美在于它能够用简单的定律解释复杂的事物。