所加的反应物可以是二烯烃 、 环二烯烃.The feed reactants can be alkadienes, cycloalkadienes.包含两个双键的化合物叫做二烯烃.Compounds containing two double bonds are called dienes.与二烯烃橡胶相比, EPDM的双键很少.Compared with diolefine rubber, EPDM has less double b...
He was diagnosed as severely dyslexic but extraordinarily bright.他被诊断患有严重的阅读困难症，但是却绝顶聪明。Being dyslexic does not mean that one is unintelligent. Far from it.患有诵读困难症并不意味着智力低下。两者相差甚远。The preschool teacher pronounced Vicente...
The Macmillan Guide had forewarned me of what to expect.《麦克米伦指南》已经事先告诫过我会遇到什么情况。Macmillan wrote back saying that he could certainly help.麦克米伦回信说他肯定能帮忙。MacMillan's music characteristically makes a dramatic impact.麦克米...