retention

retention
noun
[mass noun]
  1. the continued possession, use, or control of something
    保留,保持
    the retention of direct control by central government.
    中央政府保留直接控制权。
    ■the fact of keeping something in one's memory
    记忆
    the children's retention of facts.
    孩子们对事实的记忆。
    ■the action of absorbing and continuing to hold a substance
    (对物质的)吸收和保持
    the soil's retention of moisture.
    土壤对水分的吸收和保持。
    ■failure to eliminate a substance from the body
    潴留;停滞
    eating too much salt can lead to fluid retention.
    吃盐太多可能会导致液潴留。
语源
  1. late Middle English (denoting the power to retain something): from Old French, from Latin retentio(n-), from retinere 'hold back' (see retain)
英语宝典
考试词汇表