For a couple of minutes when the sun and moon are perfectly aligned, the moon completely covers the sun's disc.

太阳和月亮完全排成一线，虽然只有几分钟时间, 但月亮会完全遮挡住太阳。

As for Passepartout, his face was as red as the sun's disc when it sets in the mist, and he laboriously inhaled the biting air.

至于路路通，他的整个脸膛又圆又红，活象傍晚沉浸在薄雾里的太阳。