He was revenging himself on his two friends for liking one another more than they liked him.

他这是在进行报复，因为那两个朋友之间的感情超过了对他的感情。

" Here's thirty francs that Grogeot's recklessness is landing the municipality in for, " said one--" But, " answered another, " M. de Saint Giraud will revenge himself on Grogeot" .

“这是 Grogeot 的鲁莽行为让市政当局为此付出的三十法郎，”一个人说——“但是，”另一个回答说，“M. de Saint Giraud 会向 Grogeot 报复。”

Mr. Wickham's chief object was unquestionably my sister's fortune, which is thirty thousand pounds; but I cannot help supposing that the hope of revenging himself on me, was a strong inducement.

毫无问题，韦翰先生主要是看中了我妹妹的三万镑财产，可是我也不禁想到，他也很想借这个机会大大地报复我一下。