This is the chain of time.

这就是时间的链条。

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Our consciousness is made up of this chain of time, and within its borders we are asking: "What is time?"

我们的意识由这时间的链条构成，我们在它的疆界内问：“时间是什么？”

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In Sichuan, soldiers spent a hard time creeping across Luding Chain Bridge, which was made up of 13 iron chains, in the middle of gun fire.

在四川，士兵们在炮火中艰难地爬过由13条铁链组成的泸定铁桥。

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However, they were in the chain of command at the time that Newsnight shelved an earlier investigation into abuse claims against former BBC presenter Jimmy Savile.

BBC: The BBC's New Broadcasting House

During the hearing, Braun's side challenged the chain of custody from the time the urine sample was collected by Comprehensive Drug Testing Inc. to when it was sent, nearly 48 hours later, to a World Anti-Doping Agency-certified laboratory in Montreal, two people familiar with the case said.

WSJ: MLB: Ryan Braun's 50-Game Suspension Overturned - Milwaukee Brewers

Health clubs are bulking up, and the brawniest of them is Life Time Fitness (53, LTM), a chain of 60 fitness centers usually attached to suburban office parks.

FORBES: Magazine Article