化石燃料(如煤和石油)属于有限资源。The fossil fuels (coal and oil) are finite resources.由于资源的减少,大学正面临严峻的问题。Universities are facing grave problems because of diminishing resources.并不是他们把全球的资源耗费殆尽的。It isn't them who use up the world...
Enclid next lays down five postulates and five common notions.接着Enclid就列出五个公设和五个公理.The school building programme postulates an increase in educational investment.修建校舍的计画是在增加教育经费的前提下拟定的.These steps , known to microbiologi...