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 OB [əub, ɔ:b]   添加此单词到默认生词本
n. 洋底(实况无线电广播,向船外)




    ob
    [ noun ]
    1. a major river of western Siberia; flows generally northward and westward to the Gulf of Ob and the Kara Sea

    2. <noun.object>
    3. the branch of medicine dealing with childbirth and care of the mother

    4. <noun.cognition>


    1. "Lab coats are in the nurses' lounge, and on hall trees in the OB department.
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