I can sing, I can cry, without knowing why.

我可以歌唱，我可以哭泣，不用问为什么。

youdao

Everything has a function. Don't draw without knowing why.

每一笔一画，都有其作用，千万别不知其所以然而为之。

youdao

I will smile to the water drop full of rainbows without knowing why, even smiling.

我会对着那些挂满小彩虹的水滴微笑，甚至都不知自己为何而笑。

youdao

I will smile to the water drop full of rainbows without knowing why, even smiling.

我会对着那些挂满小彩虹的水滴微笑，甚至都不知自己为何而笑。

youdao