superficial
/ˌsu:pəˈfɪʃl; also, in ɑritish use, 英式英语读作 ˌsju:-; ˌsupɚ`fɪʃəl/ adj
1 of or on the surface only 表面的; 在表面上的
a superficial wound 表皮的损伤
Superficial scratches can be easily removed. 表层的划痕很容易除掉.
2 apparent when looked at quickly or carelessly, but perhaps not real 表面的（乍看起来的, 未必真实）
a superficial similarity 表面上的相似.
3
(a) not thorough or profound 肤浅的; 浅薄的
a superficial book, mind 立论肤浅的书、 浅薄无知的头脑
have only a superficial knowledge of the subject 对这个问题仅略知皮毛.
(b) (derog 贬) having no depth of character, feeling or commitment （性格、 感情或承诺方面）缺乏深度的, 停留在表面的
You're too superficial to appreciate great literature like this. 你没有钻劲, 无法欣赏这类文学巨著.