问题描述: improve in与improve on的区别 1个回答 分类:英语 2014-09-27 问题解答: 我来补答 improve in 在…方面有所提高 He has much improved in health. 他的健康状况大有改善.improve on 在…加以提高 He's never improved on his first book. 他从未写出比他第一部著作更好的书. 展开全文阅读