for sb help 和by doing 什么意思RT

for sb help 和by doing 什么意思RT help sb with sth,help sb for doing sth和help sb do sth 的区别? help sb with sth和 hlep sb for sth区别 by sth for sb. by sth for sb turn to sb for help by sb sth 和 buy sth for sb 意思一样吗?用法一样吗? 用下列句子造句 （1）by doing sth （2）sak sb for help （3） ask sb for stb 英语好的 by sth.to sb.还是by sth.for sb. help sb doing sth和help ask sb.for help 的同义句式 ask sb. for help 的同义句式 help sb to do sth和help sb do help sb in和help sb with的区别 ask sb with help还是ask sb for heip到底有没有ask sb with help? ask sb for help有同义短语ask for sb to help吗? by making vocaulary lists和by asking the teacher for help的翻译 ask sb for help和ask for sb的意思和用法不要长篇大论，简短一些就可以了，高手请进！！急！