这个星期是Facebook的“名人头像周”，叫CELEBRITY LOOK ALIKE WEEK，每个人都把自己的头像换成和自己长得像的名人照片，我的facebook好友里看上去是一水儿的名人啊。
Celebrity look alike week也叫Doppelganger Week，于是查了下资料，发现Doppelgänger是德语词，In the vernacular, the word “doppelgänger” has come to refer (as in German) to any double or look-alike of a person.