mankind ** feeling greater pressure from the expanding number of people. the area of the earth can never be expanded. nor are there endless sources of food and clothing. yet, the number of people ** i...
手机的利与弊 英语作文(篇1)with the improving of our living standard, nowadays ,almost everyone can afford a cell phone. every cion has two sides. when we are enjoying the benefits that cell phones h**e brought u...