饺子: dumpling, pot-sticker...
裁: to cut out (as a dress), to cut, to trim, to reduce, to diminish, to cut back (e.g. on staff), decision, judgment...
众所周知: as everyone knows (idiom)...
催眠: hypnosis...
形式: outer appearance, form, shape, formality...
会长: president of a club, committee etc...
礼拜天: Sunday...
谜团: riddle, enigma, unpredictable situation, elusive matters...
多边: multilateral...
成分: composition, make-up, ingredient, element, component, one's social status...