英语：at a later stage /in the early stage 为什么一个是at 一个又是in呢?=.=

英语：at a later stage /in the early stage 为什么一个是at 一个又是in呢?=.= at a later time at a later at a later date 歌词 请问这句英语的最后一个可数名词为什么用零冠词.这里能不能加不定冠词?Apart from any moral considerations this is a stupid method of training,for it produces a resentful animal who at a later stage may well turn man-killer 英语翻译It is frequently useful to have the description of purpose written up,for later reference in program evaluation and/ or modification,and as a reminder of assumptions made at an early stage.摆脱翻译下 baby.i guard you at a later 这句英语什么意思?当然是比喻Today we have a meeting with client which at this stage is a right royal pain in the ass. pc version to follow at a later date. untill today we have reached a stage where we have almost no rights at all. 英语单选look at the girls on the stage.look at the girls on the stage.They are more beautiful than usual.yeah.Like things to be put into market,( )person needs packaging ,too.这里为什么不用the 用a the加名词可以表示整体啊 把它 stage stage at the critical stage of的意思 【高一英语】Many young people rose and shouted _____the pop singer appeared on the stage.A.at the moment B.on seeingC.the momentD. when they saw答案：C 求每个选项详细解释~~~~~ 英语语法,词组中的介词我想以后英语方面的问题都向您请教哦?at/in the beginning stage两者都表示“在初级阶段”吗?at the stage与in the stage在意义和用法上有何区别?当stage 作“阶段”解时。 2.John,look at the time._____you stop playing the piano at such a later hour? 英语翻译：急!Nothing at this stage is etched in stone.Nothing at this stage is etched in stone. 这句话是什么意思?翻译成英语,如果是给我在线翻译就不用麻烦了.谢谢