Gaseous helium is inert, colorless, odorless, non corrosive, and nonflammable.气态氦极不活泼, 无色, 无嗅, 无腐蚀性, 不可燃.The application of gaseous ozone as ( biocide ) is a questionable practice.温室中使用臭氧气体防治病虫害是个错误.The rate of chlorosul...
He closed his door and started the quarter-mile walk down the hill.他关上门,踏上了1/4英里长的下山路.He turned his back on them and stomped off up the hill.他转身不理他们，噔噔噔地爬上了山。The Newton Hotel is halfway up a steep hill.丽东酒店位于陡峭的半山腰上。...
投入地去听别人的故事, 适时地给出一点语言或表情上的回应, 并提出一些疑问.Hear what they're saying , respond with appropriate words andand facial expressions, ask follow up questions.在交流中, 对手势或表情的含义的误解往往会引起尴尬.In communication, the misunderstanding of ...