Arsenic remained king of bug killers from medieval times up to the mid-1900s, when science found something more effective.

中古时期至20世纪中期，在科学家们找到更有效的方法之前，砷一直是杀死臭虫的王牌。

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Times up! Let's go back to school!

时间到了！我们一起回学校吧！

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Experts say the new methods also increase crop production up to five times more than crops that depend on rainfall only.

VOA: special.2010.02.08

through the Victorian times up until the current day.

再经过维多利亚时期，一直到今天。

一眼看历史 - SpeakingMax英语口语达人

And what we end up with for the energy then is 2.84 times 10 to the -19 joules.

我们算出的能量是,2，84乘以10的-19次方焦耳。

麻省理工公开课 - 化学原理课程节选

Compare that to 1920, when they went out just once every 114 times up.

FORBES: Magazine Article

He said he wanted to see schools like it "replicated many, many times up and down the country".

BBC: Truants' parents could face benefits cut, says PM

"It's huge to show that we can win close games, " said Byrd, who struck out his first two times up.

WSJ: Byrd's single in 9th lifts Mets over Marlins 4-3