一個(gè)是已經(jīng)的意思 一個(gè)是曾經(jīng)的意思~舉個(gè)例子，我已經(jīng)吃了和我曾經(jīng)吃了有區(qū)別嗎She has gone to beijin(她已經(jīng)出發(fā)去北京了）
She has been to beijing (她去過北京）
這個(gè)例子比較能明顯的看出來倆者的區(qū)別~~~希望能幫到你，不懂得請(qǐng)繼續(xù)追問~
你舉得這個(gè)例子，沒有I have been eaten 的用法~