monitor foil

例句：

1. 2.
   机器或系统
2. 1. The security guard was monitoring the entrance for any suspicious activity.
   保安正在监视入口以防任何可疑活动。
3. 2.The monitors were responsible for ensuring that all equipment was functioning properly.
   监控员负责确保所有设备都正常运行。
4. 3. The company's new software will allow us to monitor our inventory more efficiently.
   公司的新软件将使我们能够更有效地监控库存。