The words flowed unbidden from my pen.这些字句从我的笔端滚滚流出.He walked into the room unbidden.他径自走进了屋子。They arrived unbidden at the midnight.他们半夜里不期而至.Unbidden, his thoughts turned to his wife, who had died two years ago.他不禁想到了两年...
I've always had a loud mouth, I refuse to be silenced.我一贯大声说出自己的想法,不会迫于压力而一言不发。I refuse to act that way when my kids fight.我的孩子们打起架来时,我不会那样做。Those who refuse to repent, he said, will be punished.那些拒不悔改的人,他说,将会受到惩罚。...
MgO改性提高对二乙苯选择性最为明显.Silylation, P modification and MgO modification can improve p - DEB selectivity greatly.指出高效、节能的分子筛吸附分离法是分离二乙苯的最佳选择.The best choice for separating diethylbenzene is the adsorptive separation by zeolite...