He enumerated the capitals of the 50 states.

他列举了50个州的首府。

《新英汉大辞典》

In 15 of the 50 states, it shrank.

50个州中有15个都出现负增长。

youdao

their median income ranks 37th among the 50 states.

在50个州里，德州人均收入排在第37。

youdao

Unemployment in Michigan is the highest of any of the 50 states in the U.S.auto industry, which is based in Michigan.

VOA: standard.2009.07.14

I've gotten pretty far in my life, and as far as I can tell I've never, ever, ever had to remember the capitals of the 50 states.

都这么多年了，我还记得我从来没有，需要住50个州的首府的时候。

耶鲁公开课 - 死亡课程节选

More than 20 of the 50 American states ban smoking in public places.

VOA: special.2009.01.07

The Senate is comprised of 100 members -- two from each of the 50 states.

CNN: The insider's guide to the U.S. Congress

The National Statuary Hall Collection consists of two sculptures gifted from each of the 50 states.

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To date, 41 of the 50 states have dropped it from their teaching curriculum.

FORBES: Connect