noun🔗Share胸罩，乳罩 An item of underwear worn to support the breasts; now commonly shortened to bra."Before going out, she put on her bra. "出门前，她穿上了胸罩。wearitembodyChat with AIVocabulary GamePractice Reading
noun🔗Share左矢，左括号矢量。 One of the two vectors in the standard notation for describing quantum states in quantum mechanics, the other being the ket."The bra and the ket are used to represent the probability of a quantum particle being in a certain state. "左矢和右矢（ket）被用来表示一个量子粒子处于某种特定状态的概率。physicsChat with AIVocabulary GamePractice Reading
noun🔗Share哥们，兄弟。 Friend"Take it easy, bra!"别着急，哥们！personhumanfamilygroupculturelanguageChat with AIVocabulary GamePractice Reading
noun🔗Share姐妹，闺蜜 Female version of bro"My sister is a very supportive bra at school. "我妹妹在学校里是个非常支持我的好姐妹/好闺蜜。languagepersonwordChat with AIVocabulary GamePractice Reading
