巅峰: summit, apex, pinnacle (of one's career etc), peak (of a civilization etc)...
副: secondary, auxiliary, deputy, assistant, vice-, abbr. for adverb, classifier for pairs, sets of things & facial expressions...
谋害: to conspire to murder, to plot against sb's life...
象棋: Chinese chess...
来源于: to originate in...
海边: coast, seaside, seashore, beach...
名称: name (of a thing), name (of an organization)...
保持: to keep, to maintain, to hold, to preserve...
说不定: can't say for sure, maybe...
缘故: reason, cause...