It is ok to contact to schools for follow-ups and confirmation. You can contact the school regular basis, for example, once or twice in a month. Please contact, if possible, the person who has engaged with you in the process of application because she or he know you. Please do not ask others so called 'influential persons' to call the school on behalf of your admission. You do not want to give an impression that you use other person's power to gain admission. In general, the schools absolutely do not like that. Remember they do have tons of Chinese student applications. That type of actions will add to your application another reason not to accept you.
可以与学校联系,跟进和确认。例如,您定期在一个月内一次或两次联系学校 。如果可能的话请与在录取过程中接触的老师保持联系,因为他或她已经知道你。请不要让所谓的“权威的人物”代表您致电学校。你不想给校方留下您是在借用其他人的力量获得录取的印象。在通常情况下,学校绝对不喜欢这样的行为。记住他们实在是有大量的中国学生申请。这种行为,只会增添一个不录取您的理由。