We need to design for disassembly as much as for assembly.
永远不要停止学习，因为世界从未停止变化。
The success of an enterprise depends not only on the external environment but also on internal management.
We wish to discuss a structure for salt of deoxyribose nucleic acid. This structure has novel features which are of considerable biological interest.
Agriculture is the foundation of manufactures, since the productions of nature are the materials of art.
The polka dots are a way to infinity.