问题描述： "by the age of","at the age of"的区别? 1个回答 分类：英语 2014-11-15 问题解答： 我来补答 y the age of...:是到...岁时,表示的是一个时间段; 如,By the age of 20 you will have been exposed to at least 20,000 hours of television.(到20岁时,你可能花了2万个小时在看电视上面了).at the age of ...:是在...岁时,表示的是一个时间点; 如:He became an actor at the age of 16.(他16岁时成为了一个演员.) 展开全文阅读
