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。 (4) Youngsters are entitled being protected from social or economic exploitation and shall not be utilized in or required to conduct purpose that is likely to obtain harmful or to interfere with their instruction or for becoming harmful to their wellbeing and Physical fitness or physical, psychological, https://hilaryl581xri6.wikigdia.com/user