E-book sales are up 146 percent over last year, while hardback sales increased 6 percent and paperbacks decreased 8 percent.
				出自-2014年6月阅读原文
				He is eager to find a job with an increased salary.
				出自-2013年6月听力原文
				But for the remainder, the risk of cancer, while increased at the end of life, must be balanced with other factors like remaining life expectancy(预期寿命).
				出自-2012年12月阅读原文