The light that is absorbed changes into heat. The car's glass Windows let light in, but don't let all the heat out.

被吸收的光线转换为热能，而汽车的玻璃窗户让阳光进来，却不让热量出去。

youdao

Can you see it when I open the shutter to let in the light?

如果我打开百叶窗，让光线进来，你能看见吗？

youdao

In the study, the researchers let volunteers read, play games and watch movies on a screen for different time while measuring how much light their eyes received.

在这项研究中，研究人员让志愿者在不同时间于屏幕上阅读、玩游戏和看电影，同时监测他们的眼睛接收到的光线。

youdao

The four levels of rooms center on a beautiful courtyard with a glass ceiling to let light shine in.

VOA: special.2009.01.11

So much light in the sky would not let his daughter sleep.

VOA: special.2009.03.28

It will benefit from new glass technology which will let in more light, together with advanced thermal screens to keep in heat.

BBC: NEWS | UK | England | Tees | Factory fuels year-round tomatoes

To let in so much light through the splitters requires processing the light in four mixed colors, and that processing requires studying the light's behavior in 3D.

ENGADGET: Panasonic explains how its color splitter sensor works in a vividly detailed video

Bringing down the cost of LEDs this way really will let in the light.

ECONOMIST: Lighting: A brilliant new approach | The