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

父母为孩子买玩具的花费每年平均为220元。

《牛津词典》

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

约翰逊跑动带球平均每次行进6码。

《牛津词典》

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

这些船平均每次在海上呆10天。

《柯林斯英汉双解大词典》

American children now spend an average of seven and a half hours a day watching television or playing with electronic devices.

VOA: special.2010.06.07

Okay. How many people would say they were off by an average of zero to ten percent?

多少人低估了,平均从0到10%

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

It's got an average valence electron energy of about 16 eV, 16.5 eV, which is a lot greater than 11.

它的平均价电子能,大约是16eV，16。5eV，那比11要多很多。

麻省理工公开课 - 固态化学导论课程节选

An average of 838, 000 tuned into the two-week, 20-hour run of the series which ended on 22 December.

BBC: Doctor Who is sci-fi favourite

Assuming an average of 20 claims each, that is 5, 000, 000 restrictions on smartphone innovation.

FORBES: Patent Wars Rage As Tech Industry Waits For Serious Reforms

What is rarely reported is that worldwide, sharks kill an average of 10 people every year.

CNN: Shark fin soup alters an ecosystem