all 所有,三者或三者以上都
both 兩者都
either （兩者中）任一的
neither 兩者都不
each （兩個或兩個以上）每個,每一
none （三個或三個以上）都不
All of my friends come to visit me.(朋友大于或等于3個)
both sides of the road 道路的兩邊
Take either of the books.隨便拿那本書都行.
He's lived in Landon and Tokyo,but he like neither of them.兩個都不喜歡
Each children of the class got an apple.每個孩子得到了一個蘋果.
None of the children got an apple.一個孩子都沒有得到蘋果.