...a hard-headed and shrewd businesswoman...是什么意思？

...a hard-headed and shrewd businesswoman...

务实、精明的女商人

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

shrewd

adj. 精明的，敏锐的，奸诈的，狡猾的，有眼光的，精于盘算的；

例句
The President has played a shrewd diplomatic game because from the outset he called for direct talks with the United States...
总统玩了一场高明的外交游戏，因为从一开始他就要求和美国直接对话。

businesswoman

n. 女商人，女实业家，（尤指）女经理，善于理财的女子；

例句
Debra is a very enterprising young black businesswoman who is involved in a lot of activities...
德布拉是个年青而又非常有胆识的黑人女商人，其涉猎广泛。