1.平均, 通常On an average, Dolly's mother has to ask her four times before she helps with the dishes. 平均算起來, 桃麗的媽媽要叫她四遍她才會去洗碗。On an average, Mr.Green traded in his car for a new one every three years. 平均起來, 葛林先生每三年就把舊車去換新車。
【口】一飽眼福, 大開眼界, 好好看一下Come and have an eyeful of this -- there's a giraffe in the garden! “快來看哪--花園裡有隻長頸鹿!”You will have an eyeful of the city from the top of Pearl Tower. 你可以從明珠塔頂飽覽這個城市的景色。