They went off arm in arm. 她们挎着胳膊走了出去。
She had a basket on her arm. 她胳膊上挎着一只篮子。
have a camera slung over one's shoulder; 挎着照相机
carry two swords at the girdle 腰挎双剑
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)