使用者觀看影片時，會在你的網站上觸發事件。以下何者是事件參數？

Event parameters provide additional context about an event. In this scenario, the video name (e.g., "Product Demo," "Company Overview") is a specific detail that describes which video was watched, making it an event parameter. The device used by the user is a user property, describing the user rather than the specific event. The number of users watching or clicking the page are metrics, which are quantitative measurements derived from events, not parameters that describe a single instance of an event.