His first appearance on stage was at the age of three.他三岁时初次登台.句中appearance（出现）名词
问题描述：
His first appearance on stage was at the age of three.他三岁时初次登台.句中appearance（出现）名词
为什么当出现讲
答
看词根
appear.v. 出现
appearance n. 外貌.出现、露面
句子直译为： 他第一次在舞台上出现/露面 是三岁的时候.