Two phrases separated by a non-breaking space will stick together (not break right into a new line). This can be handy when breaking the text could possibly be disruptive.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�