Appear→→disappear；appear→→reappear
Appear→→appearance→→appear+ance(名词后缀) n. 外表, 外观; 露面, 出场;出现, 来到
Appear→→apparent=ap(加强语气, 意义延伸)+par(pear较弱的字母删除：显示，显露)+ent(在这儿是形容词后缀)显露出来的，显现出来的大家都能了解到的，不就是明显的吗 adj. 明显; 显然。
Transparent=trans(由此到彼，穿越)+par(显示)+ent adj.adj. 可为(X光等); 透射的透明的；含义清楚的，显而易见的；坦率的；
Scar→→scare脸上有伤疤，很吓人n.惊恐 vt.吓，使害怕 vi.受惊吓，害怕
Too scared to tell anyone
be too adj. to do sth：太……而不能……
Eg. The door is too narrow for an elephant to go through.
Eg. The apartment is too small for a family of ten to live in.