noun🔗Share哑铃 A weight training implement consisting of a short bar with weight counterpoised on each end."He lifted the dumbbell repeatedly to build strength in his arms. "他反复举起哑铃，锻炼手臂的力量。sportitembodyChat with AIVocabulary GamePractice Reading
noun🔗Share笨蛋，傻瓜. A stupid person."My brother is such a dumbbell; he forgot to bring his homework to school again. "我弟弟真是个笨蛋，他又忘了带作业去学校了。personcharacterChat with AIVocabulary GamePractice Reading
