问题描述： in advance 和ahead区别 1个回答 分类：英语 2014-10-28 问题解答： 我来补答 in advance 正在前进中例:The army is in advance.军队工向前推进.而ahead 则是:在前面 或是 领先.例:Traffic ahead is very heavy.前面的交通很挤逼He is ahead of the others.他正领先了其它各人. 展开全文阅读
