bidding and bid invitation的用法和樣例：
例句
- Bulk commodity purchase by BOCOG shall be carried out through the system of government purchases and open bidding.
奧組委大宗物品採購採取政府採購方式，通過招投標進行統一採購。 - Problems existing in the bidding system of China's construction industry and some countermeasures for Chinese contractors.
建築工程招投標制的問題及對策。
