水龙头里的发光二极管能够随着水龙头的拧开和关紧而开启或关闭，这样流到水槽或面盆里的水就会像彩色的小瀑布一般。

There is an LED that gets activated when the tap is turned on and deactivated when turned off, this results in a stream of coloured waterfall in your sink or basin.

youdao

当天，我在洗手间洗手回来，发现那里的水龙头坏了，一滴滴清澈的自来水像瀑布一样往外流，我费劲心思想把它关了，但是总不能如愿以尝，将水龙头给关掉。

That day, I came back in the restroom to wash their hands, found the tap is out of order, a clear water like a waterfall flowing, I had thought to turn it off, but can't get it, turn the tap off.

youdao