The usage of video verification code can be written in English as follows:
Video verification code is used to ensure the authenticity and security of online activities by requiring users to watch a short video and perform certain tasks to validate their identity. It is commonly employed in various scenarios such as account registration, password resets, transaction verification, and online security measures to prevent automated attacks and fraudulent activities.
这段英文大意是：视频验证码被用于在线活动中，通过要求用户观看短视频并完成某些任务来验证身份，以确保这些活动的真实性和安全性，它通常用于账户注册、密码重置、交易验证以及在线安全措施等多种场景，以防止自动化攻击和欺诈行为。
