《资治通鉴·汉纪·汉纪三》
待到项羽背弃关中而怀恋楚国故土，放逐义帝而自立为王，这时怨恨诸侯王们背叛自己，可就很难说得通了！
及羽背关怀楚，放逐义帝而自立；怨王侯叛己，难矣！
When Xiang Yu abandoned Guanzhong and returned to his native Chu and deposed Emperor Yi to make himself king, he could hardly hold his vassal kings responsible for abandoning him.
<s>[INST] Convert the following modern Chinese text into Classical Chinese: 待到项羽背弃关中而怀恋楚国故土，放逐义帝而自立为王，这时怨恨诸侯王们背叛自己，可就很难说得通了！ [/INST] 及羽背关怀楚，放逐义帝而自立；怨王侯叛己，难矣！</s>
Convert the following modern Chinese text into Classical Chinese: 待到项羽背弃关中而怀恋楚国故土，放逐义帝而自立为王，这时怨恨诸侯王们背叛自己，可就很难说得通了！
user
及羽背关怀楚，放逐义帝而自立；怨王侯叛己，难矣！
assistant