为什么是means of transportation不是mean of transportation

为什么是means of transportation不是mean of transportation 英语翻译the science teacher believed very strongly in practical work as a means of teaching science effectively.还有,为什么是“a means of teaching”?teach为什么是ing形式? They tried to shore up the failing economy by means of tax increases.这里为什么是increase加是而不是tax加es,求指教 by means of 是什么意思?Let's assume,______argument, that inflastion will remain at 5% per year for 2 years.A) in the light of B) by means of C) for the sake of D) in light of 为什么是B,能把几个选项都分别分析一下么?整句 by means of 英语翻译 英语翻译means 加 of try every possible means 为什么是means 不是mean.不是说有every each修饰时用单数 Vacation means holiday 请问这里为什么是 means啊?为什么要加s 为什么不是 is mean volunteering means to work without being -----为什么是填 过去式paid what does that sign means?用到了哪些语法现象 为什么是does儿不是do 词义辨析By means of.by no means.by this means.by all means Means of transport and route means of transport可数吗 means of transportation和the means of transportation的区别再加上a means of transportation 为什么是a success of My favourite means of transportation以这个为题目写一篇100字左右的作文! I am a man of means by no means. 什么时候用ways of和means of