释义
n.
a young foreign person, typically a woman, who helps with housework or childcare in exchange for food, a room, and some pocket money
互惠换工者（以协助家务、照顾孩子等换取食宿和零用钱的外国年轻人，尤指女性）。
词源
"late 19th cent.: from French, literally ‘on equal terms’． The phrase was originally adjectival, describing an arrangement between two parties paid for by the exchange of mutual services； the noun usage dates from the 1960s．"
