他11歲了用英語表達是he is eleven years old
he：pron.他;它(指雄性動物);人(指性別未說明或不知道的男性或女性，尤指曾提過的人或泛指某群體時);指上帝。
eleven：n.十一;十一個;第十一十一。
years：n.年;日曆年;一年時間;與某事相關的一年;年度。
擴展資料。
he was barely 20 years old and already running his own company
他只有20歲，卻已經營起自己的公司了。
i was twenty years old and ready for anything
我當時二十歲，什麼都願意去做？
these rocks have been dated radiometrically at two billion years old
經輻射能探測，這些岩石形成於20億年前。
young children are beginning their formal education sometimes as early as four years old
幼兒有時早在四歲時就開始接受正規教育。
in those days most people left school when they were only fifteen years old
那時候，大多數人上學只上到十五歲。
he：pron.他;它(指雄性動物);人(指性別未說明或不知道的男性或女性，尤指曾提過的人或泛指某群體時);指上帝。
eleven：n.十一;十一個;第十一十一。
years：n.年;日曆年;一年時間;與某事相關的一年;年度。
擴展資料。
he was barely 20 years old and already running his own company
他只有20歲，卻已經營起自己的公司了。
i was twenty years old and ready for anything
我當時二十歲，什麼都願意去做？
these rocks have been dated radiometrically at two billion years old
經輻射能探測，這些岩石形成於20億年前。
young children are beginning their formal education sometimes as early as four years old
幼兒有時早在四歲時就開始接受正規教育。
in those days most people left school when they were only fifteen years old
那時候，大多數人上學只上到十五歲。