The difference between ordinary and extraordinary is that little extra.
写书的职业使赛马看起来像是一个稳固、稳定的生意。
可持续发展不仅仅是保护树木,更是确保人类与自然都能繁荣的未来。
The man who is fit to work at any particular trade is unable to understand the science of that trade without the help and guidance of those who are working with him or over him.