用法at the age of中的at是介詞,表示時間點(diǎn),強(qiáng)調(diào)某一時間的情況。該短語還可以用其他方式表達(dá),如:at the age of twelve(在十二歲時),與at twelve(years old) 和when sb. was twelve (years old)相當(dāng)。例如:① He was very clever and at the age of seventeen he went to ......（本文共 397 字）     [閱讀本文] >>