an average of

基本解釋

Many states with higher income and education levels are already near or below an average of two children per family.
在一些收入和教育水平較高的邦，平均每戶家庭衹生養(yǎng)了兩個(gè)或不到兩個(gè)孩子；
But in the short term, individual Americans buying cover for next year have already seen their premiums increase by an average of around 20%.
而從短期來看，每一個(gè)購(gòu)買了下年毉療保險(xiǎn)的美國(guó)人都已經(jīng)看到他們的保費(fèi)平均增加了20%。
Data captured by the DTW benchmarking tool during this test run showed that the database was processing an average of 302.93 transactions per second.
DTW 基準(zhǔn)測(cè)試工具在這個(gè)測(cè)試執(zhí)行過程中所獲得的數(shù)據(jù)表明，這個(gè)數(shù)據(jù)庫(kù)每秒平均処理 302.93 個(gè)事務(wù)。

American children now spend an average of seven and a half hours a day watching television or playing with electronic devices.
Okay. How many people would say they were off by an average of zero to ten percent?
多少人低估了,平均從0到10%
耶魯公開課 - 關(guān)於食物的心理學(xué)、生物學(xué)和政治學(xué)課程節(jié)選
It's got an average valence electron energy of about 16 eV, 16.5 eV, which is a lot greater than 11.
它的平均價(jià)電子能,大約是16eV，16。5eV，那比11要多很多。
麻省理工公開課 - 固態(tài)化學(xué)導(dǎo)論課程節(jié)選

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