We tried to grow some copper sulphate crystals with our children.我们想跟孩子们一起制作硫酸铜晶体。Adding sulphate to the solution will give a precipitate.将硫酸盐加入该溶液会产生沉淀.More ammonium sulphate solution is being recovered in the process o...
Ex-forces personnel could be the manna from heaven employers are seeking.当过兵的人大概是雇主们寻找的宝贝了。The revealed documents were manna for journalists.这些披露出的文件让记者们如获至宝。I needed that money so desperately, it was like manna from hea...
若干研究已经发现了两个重要常量。Two significant constants have been found in a number of research studies.其值不变的量称为常量.A quantity whose value remains unchanged is called a constant.在无外力时,质心的速度是常量.The velocity of the center of mass is cons...
I see myself, first and foremost, as a working artist.我首先还是把自己看作一名艺术工作者。the world's foremost authority on the subject该学科全世界首屈一指的权威He was a singer, but first and foremost a scholar.他是个歌手, 但他主要是一位学者....
很明显，她想谈些私事。It was clear that she wanted to discuss some private matter.他老是为私事来麻烦我.He always troubles me about his private affairs.她总是打听别人的私事.She is always prying into other people's affairs....