尺子: rule, ruler (measuring instrument)...
办事: to handle (affairs), to work...
为难: to feel embarrassed or awkward, to make things difficult (for someone), to find things difficult (to do or manage)...
群体: community, colony...
全心全意: heart and soul, wholeheartedly...
美人: beauty, belle...
电台: transmitter-receiver, broadcasting station, radio station...
出毛病: a problem appears, to break down...
师范: teacher-training, pedagogical, normal (school, e.g. Beijing Normal University)...
开创: to initiate, to start, to found...