sing.词根词缀

滑轮组的英文：pulley block参考例句：A pulley or a system of pulleys set in a casing.滑轮，滑轮组安装在机械外壳中的滑轮或滑轮组I finally hoisted him up with a block and tackle.我最终用滑轮组把他吊了上去。A block and tackl

发展式特许经营用英语怎么说？请看《中国日报》的报道：In some regions, McDonald's also has allowed developmentallicensing. Under this arrangement, a local licensee owns thebusiness, including the real estate, and uses his

Mudslides and floods in Sri Lanka have killed 213 people and left 90 missing. However, survivors are plagued by another fight for life -- disease and shortage of potable water.In one or two weeks time there will be huge