I can't help casting covetous looks at my neighbour's new Porsche.

我忍不住对邻居的新保时捷车垂涎欲滴

Even here a red Lamborghini Diablo sports car attracts covetous stares.

即便在这儿，一辆红色兰博基尼的迪亚波罗跑车也会招来垂涎的目光。

A covetous man is ever in want.

贪婪的人永远想要更多。

The guy is covetous of power.

那家伙很贪权。

She shows a covetous look.

她露出贪婪的表情。

A covetous man is good to none but worse to himself.

贪婪的人对别人没好处，对自己更有害。