取120个值计算平均数。Take a hundred and twenty values and calculate the mean.把它们相加再除以5就是平均数，明白吗？Add them together, divide by five, and you've got the average. Okay?在新英格兰人们的收入通常比全国平均数低10%.Income in New England is commonly 10 ...
...the erosion of moral standards.道德沦丧More familiar landscapes have been sculpted by surface erosion.还有更多熟悉的地貌是因地表侵蚀形成的。Abrasion also abets wind erosion.磨损作用也助长了风的侵蚀.As their roots are strong and penetrating, they preven...
Millions were spent to hammer away at the sales resistance of voters.花费数百万元以消除选民的反感.All his recent letters hammer away at the questions of technical innovation.他最近的一些来信都一再谈到技术革新问题....
Holyfield has bulked up to 210 pounds using weights.霍利菲尔德体重增到了210磅。Turkeys can reach enormous weights of up to 50 pounds.火鸡能重达50磅。Walking with weights makes the shoulders very susceptible to injury.负重行走时肩膀很容易受伤。...
Exposure , chilling and fatigue are sometimes precipitating causes.日晒 、 受凉和疲劳有时会是神经痛的诱因.The precipitation bond adopts a sloped tube to enhance the precipitating efficiency.沉淀池采用斜管,提高了沉降效率.Precipitating electrode plate is...
她的床收拾得很整洁，衣服也收起来了。Her bed was crisply made, her clothes put away.我宁可你把那玩意收起来。I'd just as soon you put that thing away.哦，那些书！我本来要在下午之前收起来的。Oh, those books! I meant to put them away before this afternoon....