Consider using head movement itself as a direct control or as a way of introducing contextsensitivity into your control scheme.
请考虑使用头部运动本身作为直接控制或作为上下文敏感性引入您的控制方案的一种方式。
2
You can argue that learning another language well is more taxing than, say, learning to play chess well—it involves sensitivity to a set of complicated rules, and also to context.