never fail to do 与must比较谁更委婉有个句子：you never fail to study hard语气和must比较谁更委婉

never fail to do never fail to do 与must比较谁更委婉有个句子：you never fail to study hard语气和must比较谁更委婉 fail to do sth与forget to do的区别 never been afraid to fail you never fail to fascinate fail to do fail to do=? fail to do与fail (in) sth有什么区别啊 Never giving up when you fail to do it.我这样说格式多吗? never fail to size the day but do not give youself away翻译? never fail to seize the day中fail是什么意思 fail to do sth=? fail to do 还是fail to have done? We do not plan to fail we fail to fail in sth..fail to do sth.啥意思? fail to do和 fail doing有区别没? why do you fail to see me? often fail to do英文意思