Usually at this time the yellow light just light up.

而通常此时黄灯才刚亮起。

From bizarre antimatter to experiments that tie light up in knots, physics has revealed some spooky sides of our world.

从奇异的反物质到把光捆扎成结的实验，物理学已经揭示了我们世界的一些幽灵般的方面。

She was relieved to see his face light up with a boyish grin.

看到他脸上显出孩子气的笑容，她松了一口气。

Let's light up a big campfire to keep warm.

让我们生个篝火来取暖吧。

Do you know? It's you who light up my life!

知道吗，是你，点燃了我的生命！