alter ego

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++al·ter e·go /ˌæltər ˈiːɡəʊ, ˌɔːl- $ ˌæltər ˈiːɡoʊ, ˌɒːl-/ noun [countable]  1  somebody’s alter ego an invented person that you use to represent part of your character that is very different from your usual one 某人的第二自我，某人个性的另一面 Gissing used his fictional alter ego to attack Victorian morals. 吉辛用小说中的第二自我抨击维多利亚时代的道德观。2  LIKE/SIMILARsomeone you trust and who has similar opinions, attitudes etc 至交，知己，密友 Mrs Reagan was widely regarded as the president’s alter ego. 里根夫人被普遍认为是里根总统的知己。

Examples from the Corpus

alter ego• Equally Odette and her alter ego Odile attract the prince less through their enchanted beauty than through their artlessness.• Margara seems very much the alter ego of her creator.• He was not much closer to Belafonte, whose alter ego he played in the show.• During the past couple of years, Jerry had practically become his younger alter ego.Origin alter ego (1500-1600) Latin “other I”

al·ter e·go nounChineseSyllable  

part use to represent that an Corpus invented you person

alter ego
al‧ter e‧go /ˌæltər ˈiːɡəʊ, ˌɔːl- $ ˌæltər ˈiːɡoʊ, ˌɒːl-/ noun [countable]1. sb’s alter ego an invented person that you use to represent part of your character that is very different from your usual one:
    Gissing used his fictional alter ego to attack Victorian morals.
2. someone you trust and who has similar opinions, attitudes etc:
    Mrs Reagan was widely regarded as the President’s alter ego.

alter egoBrE /ˌæltər ˈiːɡəʊ/ 🔊NAmE /ˌæltər ˈiːɡoʊ/ 🔊BrE /ˌɔːltər ˈiːɡəʊ/ 🔊NAmE /ˌɔːltər ˈiːɡoʊ/ 🔊 noun (

plural

alter egos) (from Latin) a person whose personality is different from your own but who shows or acts as another side of your personality 第二自我◆Superman's alter ego was Clark Kent. 超人的第二自我是克拉克 · 肯特。🔊🔊a close friend who is very like yourself 至交；知己；挚友