This paper describes the design of CEMT-Ⅱ, an interactive Chinese-English machine translation system. Based on the CEMT-Ⅰsystem, CEMT-Ⅱwill be developed to have the ability to translate Chinese scientific documents into English. Now an user-friendly interface has been worked out to solve various complex ambiguities. The Chinese user need not know English well since all the questions and choices are expressed in Chinese.