Hong Kong has been endowed with one of the finest natural harbours in the world.香港是世界上最好的天然海港之一.Townsend harbours no regrets.汤森心中无怨无悔。Such peace would be preferable to the status quo which constantly harbours the potenti...
There are significant parallels with the 1980s.与20世纪80年代有明显相似之处。The street parallels the railway.这条街与铁路平行.These parallels cannot be merely coincidental.这些相似之处不可能只是巧合....
R ” 是取化基,如乙氧基 、 甲氧基及它们的环氧和烷氧同系物或卤基.R " is a replaceable function , e . g . acetoxy, methoxy, their acyloxy and alkoxy homologs or halo.通过选择特定的同系物混合物, 可以达到应用性能的优化.By selection of specific homologous mixtures, application ...