| 单词 | 保持长久 |
| 释义 | 〔mistress〕A woman who has a continuing sexual relationship with a usually married man who is not her husband and from whom she generally receives material support.情妇：与通常是已婚但又不是自己丈夫的男子保持长久的性关系，并从他那里得到物质支持的女人〔long〕Into or in a long position, as of a commodity market.保持长久的：处于或进入多头阵地的，如商品市场 |
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