答: 有几个错误。这句话你想表达的意思是一群年轻人在一个大网格的不同小房间里用电脑和他人聊天。正确的应该是A host of young people are talking with others on computers in each small room of a big grid.(1) 用电脑聊天是talke on computers/chat on computers/chat on the Internet 不能用by。 (4)在各自的小房间是in each small room 要去掉every, every和each不能同时使用,而且every没有“各自的”这个意思。(5)网格要用grid, net是网、网状物,没有立体网格的意思。