Oh, second step, how black art thou!

第二步，你是多么黑暗呀！

They want it to continue being a black art.

他们希望它继续成为一种魔法。

However, recharging NiCad batteries is a black art.

然而，给镍镉电池充电却是一个黑色艺术。

Perhaps I don't truly believe in the power of the black art.

或许我真实地不相信妖术的力量。

Computer hacking is no longer the black art of computer geniuses.

电脑黑客已不再是电脑天才的黑色艺术。