According to the U.S. Department of Labor, in May 2015 there were 505,560 registered school bus drivers.

根据美国劳工部的统计，截止到2015年5月，登记在册的校车司机有505560人。

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Night bus drivers?

夜间大巴司机？

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The researchers found the findings were stronger for the female bus drivers.

研究者发现尤其适用于女性公交司机。

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Blacks had been arrested and even killed for violating orders from bus drivers.

VOA: special.2009.03.08

They also demanded that the city hire black bus drivers and that anyone be permitted to sit in the middle of the bus and not have to get up for anyone else.

VOA: special.2009.03.08

We even pay for bus drivers to take the kids home from school after practices.

FORBES: I Will Gladly Pay More Taxes to Expand High School Sports

The union representing Jersey bus drivers says transport authorities are reneging on assurances given to staff.

BBC: Jersey bus drivers union unhappy with staff transfer

The federal government last month banned interstate truck and bus drivers from using cell phones while driving.

CNN: Call for car-phone ban likely to meet busy signal in states