Benzyl butyrate was synthesized by using potassium bisulfate as the catalyst.以硫酸氢钾为催化剂,丁酸和苄醇为原料合成丁酸苄酯.Isoamyl butyrate was synthesized by using potassium bisulfate as the catalyst.以硫酸氢钾为催化剂,正丁酸和异戊醇为原料合成了正丁酸异戊酯.Isoamyl bu...
它们的低级同类, 如鹧鸪,有一种同样大的推进力.Their humbler followers , such as partridges have a like power of strong propulsion.在1998-2002种交通工具中, 引擎被为前面 - 轮子推进力向傍边装.In the 1998 - 2002 vehicles, the engine was mounted sideways for front - wh...
Accusations of tax evasion have tarnished his clean image.避税的指控使他的清白形象蒙污。The enamel gives new brass an authentically tarnished finish.用瓷釉作末道漆使新的黄铜器看似自然地失去了光泽。His image was tarnished by the savings and loan scandal.他的形象因为...
这枚胸针的历史可以追溯到公元前4世纪。The brooch dates back to the fourth century BC.当他们拿着注射针走近我时，我的呼吸急速加快。I hyperventilate when they come near me with the needle.她母亲数了数编织针上的针数。Her mother counted the stitches on her knitting needles....
The parable of the good Samaritan just like it.好撒玛利亚人的比喻正是如此.But after you made such a sacrifice, will still a good Samaritan?但是在你做出了这样的个人牺牲之后, 你还会助人为乐 吗 ?My neighbour a good Samaritan when I sprained my ankle.当我扭了脚脖子时,我...
We delved through a sackful of letters to draw the winning name.我们把手探进一袋信件中抽取获奖者。Letters and cards of support have been pouring in by the sackful.声援的信件和卡片成袋成袋地涌来。He got a whole sackful of letters from listeners following...