a series of 和 a chain of 的区别after a ___of misfortunes ,he called up his courage and went on with his work.

a series of a series of和a trail of的区别 是a series of factors还是a series of reasons a series of a serious of 区别 the last of a series of competitions a series a series a series a series of ,后面加什么词 a series of books翻译成中文 用a series of造句,急用! set down a series of的意思 a series of 和a pair of 后面谓语动词用单数还是复数? a series of与a plenty of等词的区别急!请比较a series of,a large amount of,a plenty of和a great deal of等词的区别 机场的a series of terminal units和standard module啥意思 a range of和a series of都有一系列的意思,请问他们的具体区别?举例说明 a series of后是不是可以跟可数复数名词,也可以跟不可数名词?a series of development a series of books a portion of a series of a pile of a panel of 的用法