keep-on和keep-up什么区别说下怎么用…举例说明

keep-on和keep-up什么区别说下怎么用…举例说明
keep-on和keep-up什么区别
说下怎么用…举例说明

keep-on和keep-up什么区别说下怎么用…举例说明
keep （on）doing,keep up sth都是坚持：don't keep on asking silly questions.别老是问傻问题.when I stopped studying.I was still keen to keep up my English我不读书了还是很想坚持学英语