Yabla video uses of 换钱

[刘义 [Liúyì
老人 lǎorén
便 biàn
萌发 méngfā
le
拾荒 shíhuāng
换钱 huànqián
zhù
xué
de
念头] niàntou]
Liu Yi came up with the idea of collecting garbage and using the money to help poor students.