"项目运维" 的英文表达是 "project operations". "运维" 是由两个词组合而来，即 "operation" 和 "maintenance"，它们分别指的是 "运行" 和 "维护"。"项目运维" 指的是确保一个项目在运行期间正常运行并保持稳定性的工作。

例句：

Our team is responsible for project operations, including monitoring the system and making sure everything is running smoothly.
我们团队负责项目运维，包括监控系统并确保一切正常运行。
We need to allocate more resources to project operations to ensure that the project is completed on time.
我们需要分配更多资源来进行项目运维，以确保项目能按时完成。
The project operations team is working closely with the development team to address any issues that arise.
项目运维团队正在与开发团队紧密合作，解决出现的问题。