milch cow

奶牛
摇钱树

例句与用法：

The boys are old enough to get a job. They are becoming the milch cow of the family.

孩子们都已长大，该找工作了。他们将成为家庭的财源。

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 ... 。

详细释义：

ph.

1. 乳牛

2. 摇钱树