见钱眼开 [- - yǎn kāi]One's eyes grow round with delight at the sight of money.; be moved at the sight of money; be tempted by money; care for nothing but money; open one's eyes wide at the sight of money:
•¶ 他是商人， 总见钱眼开。 He was a businessman, and therefore he always has an eye out for any opportunity to make money.