proud of 以 ... 为满意(以 ... 而骄傲； 自豪)
Our company is proud of its reputation for fair dealing.
我们公司以享有经营作风正派的美誉而感到自豪。
He was proud of his impeccable pedigree.
他为他出身于名门望族而骄傲。

how about 怎么样； 如何
How about going to a concert?
去听音乐会如何？
How about if we go tomorrow instead?
我们改成明天去怎么样？