Don't read by dim light.

别在昏暗的灯光下看书。

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This light is too dim to read by.

这光线太暗，看不了书。

《牛津词典》

Ferns can grow in dim lighting conditions, which can be caused when particles churned out by volcanoes block out natural light.

由于火山喷发，细小的粉尘颗粒阻挡了自然光线的照射，而蕨类植物却可以在光线昏暗的条件下自由生长。

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Instead, they will extend their day by the dim light of kerosene lamps.

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By entering the control panel, you'll find a night mode that offers a super-dim clock and alarm display for bedside duty, though we wish this mode could be triggered automatically by light sensor (very early Classics had sensors, but for whatever reason, they were later removed).

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