第一单元： A. purposes B. secure C. however D. convince E. project F. failure G. unfamiliar H. furthermore I. community J. appreciate K. expert L. appropriate M. conveyed N. engaged O. assure To be a successful speaker, it is essential for you to know why you are speaking and what you wish to a...

时间:2024-12-24 10:44栏目:行业资料