Therefore create an on-line barter trade transaction system have a very vital practical significance.

因此实现易货贸易的网上交易模式具有非常重要的现实意义。

youdao

Therefore create an on-line barter trade transaction system have a very vital practical significance.

因此实现易货贸易的网上交易模式具有非常重要的现实意义。

youdao