Traveling by subway can sometimes be a challenge, especially during rush hour.

乘地铁有时会是一种挑战，尤其是在高峰时间。

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If so, you'll know exactly how bad traffic can get during rush hour.

要是走过，你就会清楚地知道在高峰期，路会堵得多厉害。

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MUMBAI's trains are famous for carrying what is officially called a “super-dense crush load” of passengers during rush hour.

据官方说法，孟买交通高峰期的火车客流“超级密集拥堵”，而孟买的火车也正因此而闻名。

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The American Heart Association recommends reducing time spent in heavy traffic or jogging during rush hour, or near busy roadways and better treatment for cardiovascular risk factors.

VOA: standard.2010.08.04

"Now we have what we would call rush hour conditions or peak travel conditions for as much as eight hours during the day - about three to four hours in the morning and similar time in the evening."

VOA: standard.2010.07.26

Those behind the wheel during rush hour aren't the only ones stuck in traffic.

ENGADGET: blogger-avatar

The road closures led to delays and congestion in the area during rush hour.

BBC: The crane in Vauxhall

Heavy snow during rush hour in Warwickshire caused long delays on the M6.

BBC: Heavy snow in Warwickshire causes M6 delays