adjective 下载 🔗分享 笔直，僵直 Vertical, with the back held stiffly Examples : "The tired student sat bolt upright in his chair, trying to stay awake during the long lecture. " 疲惫的学生笔直地坐在椅子上，努力在漫长的讲座中保持清醒。 body position appearance 与AI对话词汇游戏阅读练习
