Sustainability is not an option; it's a necessity for the future of agriculture.
The challenge with hepatitis C was not just to find the virus, but to understand how it evades the immune system.
Reading is to the mind what exercise is to the body.
爱情不是终日彼此对视,爱情是共同瞭望远方,相伴而行。
The truth is always exciting. Speak it, then. Life is dull without it.