问题描述: who can tell me what is the different between shall/should can/could?xD 1个回答 分类:英语 2014-12-11 问题解答: 我来补答 shall是指应该去做某事,就是你不想去也要去做 比如you should obey traffic rulecan表示有能力去做某事,但去不去就是另一回事了 比如you can swim 展开全文阅读