笑着谈论， 想着…发笑
1. 笑着谈论：laugh off 用笑摆脱(困境等) | laugh over 笑着谈论 | launch out (船)下水;开始新事情
2. 笑着谈论; 想着...发笑：laugh off 对...付之一笑; 以笑来排除... | laugh over 笑着谈论; 想着...发笑 | laugh sb. out of 以谈笑的方式使某人忘记(忧愁等)
3. laugh over
3. 边想边笑,边谈边笑：laugh at 因...而发笑; 嘲笑; 漠视,蔑视,对...一笑置之 | laugh over 边想边笑,边谈边笑 | lay aside 把...搁置一旁, 留存, 储存
4. 发笑：watch over守卫 | laugh over发笑 | lean over浮在...上面