arch-fiend

基本解释

We will be as merry and as innocent as our first parents in Paradise, before the arch-fiend entered that indescribable scene.
在撒旦介入那美妙的乐园生活，会像的祖先快乐和天真、无邪。
fanwenzh.com
As she drew nigh, the arch-fiend whispered him to condense into small compass and drop into her tender bosom a germ of evil that would be sure to blossom darkly soon, and bear black fruit betimes.
就在她走近的时候，魔王便悄声要他缩小形体，并在她温柔的心胸中投入一颗邪恶的种子，很快便会阴暗地开花，到时一定会结出黑色的果实。

Exxon for a few years held the position as arch-fiend after the Valdez spill.
FORBES: Shell To Feds: We're Already Safe, Let Us Drill