big boobs
collocation大胸
She says she gets back pain from her big boobs.
她说她因为胸大而背疼。
乳房；奶子
先理解核心含义，再看它在真实句子里的用法。
乳房；奶子
a woman's breast
He's such a boob for forgetting his own birthday.
他真是个笨蛋，连自己的生日都忘了。
非正式，常用复数
女性胸部的两个柔软多肉的分泌乳汁的腺体
either of two soft fleshy milk-secreting glandular organs on the chest of a woman
无知或愚蠢的人
an ignorant or foolish person
Don't be a boob; you should double-check your work before submitting.
别犯傻了，提交前你应该仔细检查你的工作。
I felt like a real boob when I couldn't answer the simple question.
当我答不出那个简单的问题时，我觉得自己真是个笨蛋。
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大胸
She says she gets back pain from her big boobs.
她说她因为胸大而背疼。
乳房下垂
After losing weight, she worried about her saggy boobs.
减肥后，她担心自己的乳房下垂。
隆胸手术
She saved up for a boob job before summer.
她为赶在夏天前做隆胸手术而攒钱。
（美俚）电视机
You should turn off the boob tube and read a book.
你应该关掉电视去看看书。
隆胸手术
She is thinking about getting a boob job.
她在考虑做隆胸手术。
Use boob naturally, then get feedback on meaning, tone, grammar, and phrasing.
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把boob看成两个b中间夹着oo，b像乳房侧影，oo像乳头，由此记‘乳房’；同词也指傻瓜，注意别混淆。
语域：informal 常见场景：日常口语、朋友间玩笑、非正式场合 boob 作名词时通常是非正式用语，多用于口语或轻松、亲近的场合，不适合正式或礼貌语境。
以 /uːb/ 结尾的词（tube、cube、lube、rube）与 boob 押韵；英式英语中 tube 和 cube 常在元音前带轻微的 /j/，但押韵关系不变。book 只是拼写相似：读作 /bʊk/，与 look 押韵，不与 boob 押韵。boon 和 boom 虽含 /uː/，但分别以 /n/、/m/ 结尾，也不与 boob 押韵。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.