单词学习：disappearance 名词
disappearance
/ˌdɪsəˈpɪərəns/
消失，失踪；绝迹
The sudden disappearance of Mr. Gu from the office caused great concern among his colleagues.
顾老师在办公室的突然失踪引起了同事们极大的担忧。
单词卡片
卡片已就绪
