He bumped his head on the low beams.

他的头撞到了低矮的横梁上。

《柯林斯英汉双解大词典》

Use low beams in traffic and fog .

堵车和大雾时用低光。

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This system outpaces current U. s. headlight regulations, which require a separate switch setting for high and low beams.

该系统超出了美国当前对前大灯的管理规定，它要求远光光束与近光光束要有单独的开关操控。

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She switches from high beams to low beams, and sometimes gets stuck in between.

NEWYORKER: Father of the Bride

Many of the Yorkshire Food Finder trails begin and end at his 14th-century inn, which is big on old-world charm with its wonky walls and low beams.

BBC: Eat your way around Yorkshire

There are two types one bounces electromagnetic waves off the body to create an image like this and the other uses backscatter technology to project low level X-ray beams over the body resulting in images like this.

FORBES: Avatars for Full-Body Airport Scans Could Be A TSA Privacy Coup