水产养殖是农业的下一个前沿领域。
If you aren't in over your head, how do you know how tall you are?
快乐不是一件自我存在的东西,它仅是与其他不快乐事情的一个相对比照,这就是快乐的整个情况。
The best way to keep a secret is to never have one.
Immature love says: 'I love you because I need you.' Mature love says: 'I need you because I love you.'