21. 强调必须公布包括外地临时职位在内的所有职位，包括需在填补这些职位之前向各国分发关于这些职位的详细职务说明；
21. Emphasizes the importance of openly advertising all posts, including ad hoc appointments for field operations, including the dissemination of detailed job descriptions among all States prior to the filling of those posts;