appearance 普通用词，着重由总体产生的印象。
look 普通用词，多用复数，可与appearance换用，但较口语化。
face 侧重指容貌。
aspect 书面用词，突出人或事物在某特定时间或地点时的外貌。
参考例句
1. He turned and faces her. 他转过身来，面对着她。
2. Yes, I have a face like yours. 没错，我有著和妳一样的面孔。
3. What are these tears upon your face? 在你脸上的泪珠又代表什麽?
英英解释
n.
1. the front of the human head from the forehead to the chin and ear to ear
2. the feelings expressed on a person's face
3. the general outward appearance of something
4. the striking or working surface of an implement
5. a part of a person that is used to refer to a person
6. a surface forming part of the outside of an object
7. the part of an animal corresponding to the human face
8. the side upon which the use of a thing depends (usually the most prominent surface of an object)
9. a contorted facial expression
10. a specific size and style of type within a type family
11. status in the eyes of others
12. impudent aggressiveness
13. a vertical surface of a building or cliff v.
1. deal with (something unpleasant) head on
2. oppose, as in hostility or a competition
3. be oriented in a certain direction, often with respect to another reference point; be opposite to
4. be opposite
5. turn so as to face; turn the face in a certain direction
6. present somebody with something, usually to accuse or criticize
7. turn so as to expose the face
8. line the edge (of a garment) with a different material
9. cover the front or surface of
