What is "Toto"? What is this for?

Duoduo is a commodity exchange platform, which integrates the functions of merchant marketing, commodity exchange and user entertainment. Users can use the points of "Le Dui Duo Ka" to exchange goods, make free Internet calls and play integral games, which are mainly used in catering, automobile sales, insurance sales, building materials, mobile phone retail and other industries. ?

After the exchange of materials, they will make final disposal according to the specific conditions of the goods. Generally, discarded and non-recyclable items will be sent directly to the treatment station, while idle and recyclable items will be sent to nearby needy families through communication with neighborhood committees.

1). It means that two currencies are exchanged in a certain proportion. "Literature Comprehensive Test Coin II": "Shangshu saves words, and there are many people who steal ten coins from various roads in the southeast, but Guangnan Fujian Road does not exercise ten coins, and some people change to other roads."

(2). Generally refers to exchange, exchange. Li Qingyu's "Follow the Fate, Song and Pattern": "Life is married to Dan, and it is normal for the outside world to be either parents or aunts; However, times have changed and the situation is still difficult, and we have to accommodate it. " My humble opinion on Xu Teli's establishment of parks: "I hope my parents will sacrifice part of their property, and I hope that the provincial Council and the provincial office will choose a considerable place for exchange, so that most parks will be established within the provincial wall at the same time."