（Les Misérables）
- bosom（/ˈbʊzəm/）
- [Colins Dictionary] adj. A bosom friend is a friend who you know very well and like very much indeed.
- 男女都适用，常见于女性朋友之间，形容比best friend更亲近的关系
- 意为“知心的，亲密的”，bosom friend指“密友，知己”
3. confidante
(Game of Thrones)
- confidante（/,kɒnfɪ'dænt/）
- [Colins Dictionary] n. Someone’s confidante is a woman who they are able to discuss their private problems with.
- 特指女性朋友，形容可以互相倾诉的知己
- 意为“知心女友，女性知己”
兄弟篇
1. comrade
(Game of Thrones)
- comrade（/ˈkɒmreɪd/）
- [Colins Dictionary] n. Your comrades are your friends, especially friends that you share a difficult or dangerous situation with.
- 多用于男性朋友之间，指共同度过难关的伙伴
- 意为“同志，战友”
2. buddy
(The Matrix)
- buddy（/ˈbʌdi/）
- [Colins Dictionary] n. Men sometimes address other men as buddy.
- 在美国口语中普遍使用，一般用于男性朋友之间，指非常亲近的朋友
- 意为“兄弟，哥们儿”
3. dude
