英语单词Percent用法Twenty percent of the students exercise for 4-6 times a week 中的percent为什么是单数.

英语单词Percent用法Twenty percent of the students exercise for 4-6 times a week 中的percent为什么是单数. percent的各种用法 percent的用法? fifteen to twenty percent是啥 twenty cents这个英语单词是什么意思? the other twenty percent of the students和another twenty percent of the students有区别吗 This is ten percent luck ,Twenty percent skill ,Fifteen concentrated power of will 10%~20% 是 ten percent to twenty percent吗?（急,） 请问打八折是twenty percent discount 还是eighty percent discount ? This is ten percent luck,　　Twenty percent skill 　　Fifteen percent concentrated power of will 　　Five percent pleasure,　　Fifty percent pain 　　And a hundred percent reason to remember the name! This is ten percent luck,Twenty percent skill,Fifteen percent concentrated power of will,Five percent pleasure,Fifty percent pain,And a hundred percent reason to remember the name什么意思? twenty minute,twenty minutes,twenty minutes',与twenty-minute的用法有什么区别各相当于哪种词的用法? 请问rise有这种用法吗?The market share rise by 8 percent from 25 percent to 33 percent. pay 20 percent down for it. 这里的20 percent down是什么用法? 求初中英语单词用法! 英语单词“need”的用法? 英语单词mine的用法 英语单词important的用法