贪得无厌

贪得无厌 [tān dé wú yàn]

1. ■ be insatiably avaricious; as greedy as a wolf; be greedy of gain; be insatiably greedy; flay [skin] a flint; skin a flea for the [its] hide; voracious; with one's avarice knowing no bounds:

他们贪得无厌, 你永远无法满足他们。 Their avarice knows no bounds; you can never satisfy them.