可持续性不仅是一种趋势，更是未来农业的基础。
Life is a leaf of paper white，thereon each of us may write his word or two.
The Fed put out the fire, but the house still needs rebuilding.
我们几乎无法避免这样的推论：光是由同一种介质的横向波动组成的，这种介质也是电和磁现象的原因。
The growth of an enterprise is essentially the growth of the entrepreneur.
