他有很强的求知欲.He has a strong thirst for knowledge.在中世纪这个黑暗的年代里, 求知欲全给统治阶级扼杀了.In the benighted Middle Ages, intellectual curiosity was discouraged by the authorities.他有强烈的求知欲.He has a hunger for / after knowledge....
我指甲根部的表皮龟裂粗糙，指甲被咬得参差不齐。My cuticles were split and ragged, and my nails unevenly bitten.她试图给他剪指甲，他不让。When she had attempted to cut his nails he resisted.我用拇指指甲把台灯上的螺钉拧紧了。I used my thumbnail to tighten the screw on my lamp...