1. I will co-host the event with my colleague.
(我将与我的同事共同主持这个活动。)

2. The company decided to co-operate with a competitor on a new project.
(公司决定与竞争对手合作进行一个新项目。)

3. We need to coexist peacefully with our neighbors.
(我们需要与邻居和睦相处。)

4. The two countries agreed to co-sign the treaty.
(这两个国家同意共同签署这项条约。)

5. Let's co-create a plan that works for everyone.
(让我们共同创造一个适合每个人的计划。)

6. The siblings decided to co-own the family business.
(这些兄弟姐妹决定共同拥有家族生意。)