The past is never truly gone; it lives in us, shaping who we are.
过去从未真正消失;它活在我们体内,塑造着我们。
Every seed we plant today is a promise to future generations.
You have to be passionate about what you do; otherwise, you will never excel.
DNA的结构是一个需要解决的谜题。
I know that I am intelligent,because I know that I know nothing.