指甲: fingernail...
测: to survey, to measure, to conjecture...
确信: to be convinced, to be sure, to firmly believe, to be positive that, definite news...
卓越: outstanding, surpassing, distinguished, splendid...
协调: to coordinate, to harmonize, to fit together, to match (colors etc), harmonious, concerted...
人性: human nature, humanity, human, the totality of human attributes...
哄堂大笑: the whole room roaring with laughter (idiom)...
音节: syllable...
个体: individual...
活该: (coll.) serve sb right, deservedly, ought, should...