黑夜: night...
沼泽: marsh, swamp, wetlands, glade...
器材: equipment, material...
公开: public, to publish, to make public...
师范: teacher-training, pedagogical, normal (school, e.g. Beijing Normal University)...
吵架: to quarrel, to have a row, quarrel...
极限: limit, extreme boundary...
贸易: (commercial) trade...
