生物学将把人类的每一个基因与其他动物和细菌的基因联系起来,形成这个伟大的生命链。
The best time to start taking control of your life is now.
Sometimes we get sad about things and we don’t like to tell other people that we are sad about them.
有时我们会为某些事情感到悲伤,而我们不愿意告诉别人我们为此感到悲伤。