Doing sth was no mean feat.求句式

have no mean in doing sth有这种用法么? mean to do sth/ mean doing sth mean to do sth.和mean doing sth.的区别 sb was doing sth what do you mean by doing sth? mean to do sth 的意思?mean doing sth. 和mean 从句的意思? was used to doing sth carry on doing sth句式是否正确 请解释一下...,doing sth句式的意思 want sb doing sth,这个句式对吗 求初一到高三所有的英语单词加动词原型和ing的总结,如：mean to do sth;mean doing sth之类的 求用by doing sth为句式的10句英语句子