a breakthrough in negotiations的用法和样例：
- River Valley of China has always hoped to become a breakthrough in negotiations, but the position in accordance with CVRD, the lower the prices of Chinese companies is unlikely.
- The scientists strive for a breakthrough in cancer research.
- He finally has a breakthrough in his creation.
- A “breakthrough” in land reform? Or a damp squib?
- "There has been a breakthrough in this meeting.