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。The ASL fingerspelling presented here is most commonly used for proper names of folks and sites; It is usually made use of in certain languages for ideas for which no signal is obtainable at that moment.知乎，让每一次点击都充满意义 —