Johnson carried the ball an average of 6 yards per rush.

約翰遜跑動帶球平均每次行進6碼。

The price of a PC has fallen by an average of 25% a year since 1982.

自1982年以來，個人計算機的單價年均下降25%。

The boats remain at sea for an average of ten days at a time

這些船只每次在海上平均航行10天。

Kelly had scored an average of 147 on three separate IQ tests.

凱利在3項不同的智商測試中平均得分147。

An average of 1500 persons pass here every day.

每天平均有1500個人經(jīng)過此地.

Parents spend an average of$ 220 a year on toys.

父母為孩子買玩具的花費每年平均為220元。

It takes an average of ten weeks for a house sale to be completed.

售出一幢房子平均需要10周的時間。