bosom

breast, bosom, chest

这些名词均含“胸，胸部”之意。
breast: 指人或动物的胸部或胸部的前面，也指男人或女人的乳房。
bosom: 文学用词，与breast同义，特指女性的乳房，也可用作比喻。
chest: 指胸膛，即肋骨所包围的部分。

名词 bosom:

1. the chest considered as the place where secret thoughts are kept
2. a person's breast or chest
3. cloth that covers the chest or breasts
4. a close affectionate and protective acceptance
   同义词：embrace
5. the locus of feelings and intuitions
   同义词：heart
6. either of two soft fleshy milk-secreting glandular organs on the chest of a woman
   同义词：breast, knocker, boob, tit, titty

动词 bosom:

1. hide in one's bosom
2. squeeze (someone) tightly in your arms, usually with fondness
   同义词：embrace, hug, squeeze

1. He exchanged intimacies with his bosom friend at the party.
   在晚会上，他和他的密友亲密交谈。
2. She clasped the baby to her bosom.
   她把孩子紧紧抱在怀里。
3. Never cherish a serpent in your bosom.
   永远不要施恩于忘恩负义之人。
4. A woman's bosom.
   女人的胸部
5. The robber thrust his sword through the traveler's bosom.
   那强盗以刀刺穿了那旅客的胸部。
6. The young mother held the baby to her bosom.
   那位年轻的母亲把孩子抱在怀里。
7. The girl was fortunate enough to have her mother as a bosom friend.
   这个女孩非常幸运，她的妈妈是她的知心朋友。

bos.om

n.（名词）

The chest of a human being:
胸部：人的胸部：
例句：
He held the sleepy child to his bosom.
他把昏昏欲睡的小孩抱在怀里

A woman`s breast or breasts.
女性乳房
The part of a garment covering the chest or breasts.
衣服的胸襟：穿在胸部或乳房部分的衣服
The security and closeness likened to being held in a warm familial embrace:
家庭般的温暖：如在温暖家庭怀抱的安全和亲切感：
例句：
We welcomed the stranger into the bosom of our family.
我们以家庭的关怀来欢迎陌生人

The chest considered as the source of emotion.
胸怀：被看作是情感来源的胸膛
adj.（形容词）
Beloved; intimate:
心爱的；亲密的：
例句：
a bosom friend.
一个亲密的朋友

来源：
Middle English
中古英语
from Old English bôsm
源自 古英语 bôsm