強要: coercion, a demand / 教養: cultivation, refinement, education / 共用: shared use, common use / 供用: provision for others

強要: to compel, to coerce, to exact / 教養: to edify / 共用: to share something used by all parties / 供用: to provide for the use of others

共和: collaboration; republicanism / 協和: cooperation, concord

協和: to be in concord

経典: sutra

共晶: eutectic composition / 協商: (diplomatic) agreement / 狭小: quality of being narrow / 胸章: a badge / 胸墻: breastwork / 橋床: the deck of a bridge / 競翔: pigeon racing / 強将: a strong leader, a brave general

狭小: narrow, small

お勉強: studying, studies, study

(sciences) natural science

a natural number