“复杂价格法”，比如买三送二，单件价格要自己计算。

“complex pricing”, such as three-for-two offers, where the unit price has to be worked out;

youdao

“复杂价格法”，比如买三送二，单件价格要自己计算。

"complex pricing", such as three-for-two offers, where the unit price has to be worked out;

youdao