Any heteronuclear diatomic molecule must have a dipole moment since its two ends are different.任何异核双原子分子必然具有偶极矩,因为它的两端是不同的.Figure 14.5 and 14.6 show this division for a homonuclear and a heteronuclear diatomic molecule.图...
To follow the proposed course of action is to invite nemesis.按照别人建议的行动步骤而行动就是自找报应.Lex Luthor: Superman's number one nemesis has had a plethora of hideouts throughout the years.莱克斯·卢瑟: 通过多年的努力,这位超人的头号敌人拥有了许多藏身之处.Yet ...
When your children misbehave tell them without making them feel small.孩子表现不佳时要让他们知道，但不能让他们自惭形秽。He was making a visible effort to control himself.他明显是在努力控制自己的情绪。Let me just go back to the point I was making.请允许我再回到我刚才所提的观...