In 1929,three years after his flight over the North Pole,the American explorer,R.E.BYrd, successfully........老师,three years after与next three years是有什么区别的,after是副词吗?
...se well is a must for people learning a second language中a second根据我的书,是说泛指的又一次,可是翻译成"又学一种语言"感觉没"学第二种语言"好。还有We'll have to do it a third time我们不得重做一次,书上是这么译的。谢谢...
No such thing as a ghost exists in the world.No such thing as ghost exists in the world.请问老师哪一种表达对呢,ghost是可数名词,前面需要加不定冠词吧,可是答案给的是不加冠词,指的是鬼魂整体的概念,是这样理解嘛?
...experiences gained in the operation and use this to improve its work.该处的experience很明显是作“经验”意义,应为不可数名词。 二,By Wednesday, hundreds of thousands of military personnel had been mobilized to take part in flood control and aid operations in 17 provincial...