早在计算机尚未普及的时代（约1980年），他们就创办了软件公司。Back in the dark ages of computing, in about 1980, they started a software company.英语是一种很普及的语言.English is a widespread language.电子计算机得到普及的主要因素是其价格的降低.The main reason for this surge in popu...
对猪场环境管理及环境保护的研究工作还需加强.The research on piggery environmental management and conservation need to be strengthened.那么猪场B 呢 ?它是多长?Then how about Pigsty B? How long is it?到处都是猪场.Pigs are on farms everywhere....
There is a lot of concern over the amount of herbicides and pesticides used in farming.人们对农业上灭草剂和杀虫剂的用量非常担忧.Resistance of weeds to certain herbicides is beginning toshow up.杂草对某些除草剂的抗药性已显现出来.Arsenic is widely associated ...