"Waltz with me," he said, taking her hand.“来和我跳支华尔兹吧，”他边说边牵起她的手。Even those of us with a tin ear can recognize a waltz.我们这些没有乐感的人也能听得出什么是华尔茲。Her singing of " Evening Waltz " was easy and lively, well - balanced and approp...
The use of radiation disinfection could solve some sticky problems.使用辐照灭菌能够解决某些棘手的问题.Objective To observe the disinfection effect of gastro scope by ozone water.目的观察臭氧水在胃镜体的消毒效果监测.Spores normally resist desiccation and h...