retainer
n. 保持器；家臣；保持者；[机] 护圈；预付费用
复数 retainers
例句
I'll need a five-hundred-dollar retainer.
我将需要一笔500美元的预付聘金。
《柯林斯英汉双解大词典》
The agency will pay you a monthly retainer.
这个机构将会每月付给你聘用金。
《牛津词典》
Middle-class families contract with a puller to take a child to school and pick him up; the puller essentially becomes a family retainer.
中产阶级家庭与车夫签订合同，让他送孩子去学校以及接孩子放学。车夫实际上变成了一位家仆。
