the continued possession, use, or control of something
保留,保持
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the retention of direct control by central government .中央政府直接控制权的保留。
the fact of keeping something in one's memory
记忆
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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
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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
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eating too much salt can lead to fluid retention .吃盐太多可能会导致液潴留。
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retentionn.保留;保持;潴留;记忆;停滞;吸收和保持
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detentionn.拘留;课后留校
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preventionn.防止;阻挡;预防;妨碍
"late Middle English (denoting the power to retain something): from Old French, from Latin