authority to negotiate

例句：

1. 1. They are negotiating a new contract with the company.
   他们正在与公司谈判一项新的合同。
2. 2.The two sides are negotiating to reach an agreement.
   双方正在谈判以达成协议。
3. 3. The negotiations between the two countries have been going on for weeks.
   两国之间的谈判已经进行了几周。