你爱你的家庭 » You love your family 市场管理是规范的 » Market management is the norm 为了在语法上不犯错误，你应该进行足够的写作练习 » In order to make no errors in syntax, you should do enough writing exer...
Thereasonis the lack of a perfectsystem of laws, an efficient mechanism of the estimateof researchitem, the normal management of technicalmarketand the lack of the restriction of morals.