noun 下载 🔗分享 指甲,趾甲 The hard, flat translucent covering near the tip of a human finger, useful for scratching and fine manipulation. Examples : "She bit her fingernails when she was nervous before the exam. " 考试前紧张的时候,她会咬指甲。 anatomy body physiology part human appearance 与AI对话词汇游戏阅读练习