A healthy animal is the foundation of a healthy food chain.
健康的动物是健康食品链的基础。
New energy is not only the direction of industrial upgrading but also an important part of national strategy.
"To live is the rarest thing in the world. Most people exist, that is all."
The meaning of life lies not in the answers, but in the questions.
Mental activity is always directed toward some end.
成功辨识的关键是找到一个足够灵活的模型结构,以捕捉系统的基本特征,同时又足够简单,可以从现有数据中估计出来。
The most important thing is to enjoy your sport. If you don't enjoy it, you won't be able to give your best.