大哥: eldest brother, big brother (polite address for a man of about the same age as oneself), gang leader, boss...
东: east...
终结: end, conclusion, to come to an end, to terminate (sth)...
手工: handwork, manual...
了解: to understand, to realize, to find out...
精简: to simplify, to reduce...
掀: to lift (a lid), to rock, to convulse...
及其: (conjunction linking two nouns) and its..., and their..., and his..., and her......
撤退: to retreat...
树立: to set up, to establish...
