“你一定是在等哪位小伙子吧，”她揶揄道。"You must be expecting a young man," she teased.被富兰克林揶揄之后，萨拉的脸上全无笑意。Sara was not amused by Franklin's teasing.他动辄便揶揄挖苦一番——这个人不上档次。He always throws out the tacky comment and the cheap shot. He has...
The company is proud to be in the vanguard of scientific progress.这家公司以处于科学发展的领先地位而自豪。They are in the vanguard of technological advance.他们是技术发展的先导.In a way they played a vanguard role.在某种意义上说,他们起了先锋的作用....
Two - stage chromate reduction has been used at several plants.一些厂已采用两段铬酸盐还原法.The potassium chromate method is one regular method to determine COD.重铬酸钾法是测定化学需氧量的常规方法.Cr - Fe waste residue is derived from production of ch...