defined/dɪˈfaɪn/动词给(尤指单词)下定义;说明,解释Your rights and responsibilities are defined in the citizens' charter.你的权利和义务在公民宪章中有明确的界定。显示出…的轮廓;确定…的界线The outline of the castle on the hill was clearly defined against the evening sky.山上城堡的轮廓在夜色的映衬下显得格外清晰。想跟读,去练习