Now astronomy didn't really bloom into the science it is today until the development of spectroscopy.

直到光谱学发展，天文学才真正发展为今天的科学。

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Medieval agriculture in northern Europe fed, clothed and sheltered a predominantly rural society with a much lower population density than it is today.

北欧的中世纪农业为主要的农村社会提供了食物、衣服和庇护，人口密度比今天低得多。

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When the house was built, it was much smaller than it is today.

这栋房子建成时比现在小得多。

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Wayne Bronner says the family's long-term planning and willingness to reinvest profits has grown the company into what it is today.

VOA: special.2009.12.25

The time was in the early 70s, so factory farming was not well-known, was not as dominated as it is today, but it still existed.

那时是70年代早期，工厂化养殖并不为很多人所知,也不如今天这样占主导地位，但当时已经出现了这种方式。

普林斯顿公开课 - 人性课程节选

It used to be a lot easier to be physically active then it is today, and we'll discuss this later in the class, but energy saving devices all over the place.

在过去,人们比现在从事更多的体力活动,这一点我们以后再讲,帮助你省力的装置,如今随处可见

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Scientists say the climate back then was also considerably warmer than it is today.

BBC: Scientists call for action to tackle CO2 levels

Just imagine if your income, and net worth, was 30% higher than it is today.

FORBES: Everything Economics Turns On A Trifle

"(They) are the reason why this program is what it is today, " Ryan said.

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