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Bridging mode is to separate things from their concrete implementation so that they can change independently. The purpose of bridging is: Decoupling abstraction and implementation, So that the two can be changed independently, Like our commonly used JDBC bridge DriverManager, when JDBC connects databases, it switches between databases without moving too much code or even at all. The reason is that JDBC provides a unified interface, each database provides its own implementation, and a program called database driver is used to bridge. Let's look at the diagram:　　萍水相逢的孟珏为云歌排忧解难，看似淡漠，却以独特的方式默默守候云歌。原来，八岁的云歌无意中送出两只珍珠绣鞋，一是与她拉钩为誓的刘弗陵，另一就是当年的小乞丐孟珏。云歌费尽心思找寻刘弗陵，却机缘巧合地与孟珏相识相爱。珍珠绣鞋牵引出两段情缘，看似造化弄人，却是上天给云歌最好的礼物。云歌从一个无忧无虑的少女到经历了人生的悲欢离合，但她依然是大漠上骑着天山雪驼爱乐于助人给人希望的善良女孩，努力与坚持在真爱中，做出最美味的食物，在蓝天白云下，唱出最美最动人的歌。这一点他在之前检阅各卫所的过程中已经确定了。As you can see, subscribers only subscribe to messages that interest them.若是项羽误以为自己想要拖延时间。故事发生在改革开放的前夕,中国陕北山区的一个村庄里。高家林是村里为数不多的读过高中的青年。他毕业后被分配在村里的小学担任教师。不顾村里人的闲言碎语,他和村里纯朴善良的姑娘刘巧珍,自由恋爱。好景不长,同村青年高三星一直暗恋着巧珍,并利用其父的职权,顶替家林成为一名乡村教师。但巧珍并没有放弃对家林的爱情,反而在生活中更加关心家林.这使三星对家林产生了强烈的嫉恨,家林也因被三星顶替了教师。