她取代了他在他母亲心目中的地位吗？Did she usurp his place in his mother's heart?你会不知不觉地产生想当母亲的渴望。The desire to be a mother may creep up on you unexpectedly.母亲为胎儿提供营养和成长的空间。The mother provides the embryo with nourishment and a place ...
I spent a very hectic Sunday.我度过了一个忙乱的星期天。The last few weeks have been hectic.过去几周一直忙得不可开交。My life was very hectic but empty before I met him.在遇到他之前，我的生活非常繁忙却很空虚。It's a bit hectic. I'm in the middle of cooking ...
它们是催化合成肉桂酸正丁酯的良好催化剂.They were good catalyst for synthesis of n - butyl cinnamate.计算并绘制了H_2O及反式肉桂酸的MEP图.MEP of H _ 2 O and trans - cinnamic acid were calculated, and themaps were drawn.以钨硅杂多酸为催化剂,通过肉桂酸和正丁醇反应合成肉桂酸正丁酯.Butyl...