a milch cow的用法和样例：
- This lark is going to turn into a milch cow.
- I refuse to be a milch cow for your family any longer.
- Too many people regard the Social Security as a milch cow from which they can get an inexhaustible supply of money without having to work for it.
- His interesting patient, Jos, was a regular milch cow to the doctor ...
他那怪有趣的病人乔斯现在成了这医生最靠得住的摇钱树 ... 。
- The boys are old enough to get a job. They are becoming the milch cow of the family.
a milch cow的相关资料：