Doing sth was no mean feat.求句式意思好像是 XXX绝非易事,doing sth 主语,was 喂鱼,no mean feat ,mean 是什么成分,feat 又是什么成分

sb was doing sth there is no point in doing sth. Doing sth was no mean feat.求句式意思好像是 XXX绝非易事,doing sth 主语,was 喂鱼,no mean feat ,mean 是什么成分,feat 又是什么成分 no time后面应该跟什么to do sth还是doing sth还是for doing sth? there is no sense in doing sth there is no sense in doing sth 用Do sth,Do not do sth,No doing sth造句(各5个) It is no use doing sth与It is no use to do sth的区别. it is no good doing sth和it is no use doing 要例句 have no time to do sth 还是doing 如何回答：would you mind doing sth, include yesno 用it is no pleasure doing sth 造句? have no mean in doing sth有这种用法么? it's no good/use doing sth 并举例 it is no it is no use doing sth为什么不是it is not use doing sth? 1.It is no use doing sth 2.It is of no use doing sth哪个是对的? there is no doing sth句型 还可以加上in地点吗?there is no doing sth in 地点 it is no use doing sth.与it is no use to do sth.的区别还有there is no use doing sth.与它们的区别 用“When ……,I was doing sth.”造句