No light leaks are permitted at the ceiling line or from any visible part or joint of the fixtures.

在天花板接缝和灯具连接处的任何可见部分，都不允许有光线溢出的现象。

youdao

Nails should be kept, clean, well manicured and at a moderate length. Only clear or light nail varnish is permitted.

指甲应修剪整齐，保持干净整洁、长度适中。只允许涂无色或淡色的指甲油。

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The length of time required or permitted for a camera shutter to open and admit light.

暴光的时间照相机快门打开并让光线进入所需的或能允许的时间长度。

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These features permitted as much air flow and natural light as possible.

VOA: special.2009.08.21

Rather than focus on the important question of women receiving equal pay for equal work, Romney chose to frame his answers in the light of creating policies that permitted women to have the sort of adjustable schedule that would get them home in time for dinner.

FORBES: Debate Night's Most Telling Exchange: Equal Pay For Women