noun 下载 🔗分享 哑铃 A weight training implement consisting of a short bar with weight counterpoised on each end. Examples : "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。 sport item body 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 笨蛋,傻瓜. A stupid person. Examples : "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。 person character 与AI对话词汇游戏阅读练习