This house, which is to be sold by auction next month, was built about fifty years ago.

这栋房子约于五十年前建成，将于下月拍卖。

youdao

Around me the charming façades of 200-year-old buildings, beautifully restored and maintained, lie about the dreadful events that took place here an eyeblink of fifty years ago.

我身旁则是200年的老咖啡馆，古旧而艳丽，和我五十年前所建的完全没变样。

youdao

Fifty percent of people said they were "very" or "somewhat" worried about global warming, down 13 points from two years ago.

50%的人们说他们“非常”或是“某种程度”上担忧全球变暖，比两年前下降了13个百分点。

youdao

About one hundred fifty years ago, a magazine described this same area as very dangerous.

VOA: special.2009.07.20

The limestone developed about two hundred fifty million years ago.

VOA: special.2009.12.07

And then Alban said something else that struck me: about fifty years ago, only 1 in 20 workers in the U.S. needed government permission (in the way of regulations) to earn a living.

FORBES: Attorney Who Bested IRS In Tax Preparer Regulation Case Speaks Out

Its opening phase appears to have started about fifty thousand years ago, when the first humans migrated across Australia and America.

NEWYORKER: The Sixth Extinction?

Fifty years ago, the Far Left would have been quite open about its socialist program for America.

FORBES: Tea Party Agenda No. 6: Repeal ObamaCare