知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。Like others have mentioned, center on a game, when that's carried out you'll have a 'game motor'. I do think as well Many of us get stuck on the tho