retention

• 名词，指保留、保持或维持某事物的行为或状态，包括记忆力（记住过去经历的能力）以及保持液体或物质不流失的能力。

A noun referring to the act of keeping or holding something, including the ability to recall past experiences or the capacity to retain liquid.

不可数

1. B2formal

   The act of keeping or holding something, or the state of being kept or held.

   保留

   • The retention of key employees is crucial for the company's success.
   • Water retention can be a symptom of certain medical conditions.
   • The new policy focuses on the retention of historical documents.

   同义词custodyholdingkeepingmaintenancepossessionpreservation

   反义词dischargeejectionexpulsionlossrelease

2. Memory or recallB2formal

   The ability to remember or recall past experiences or information.

   记忆保持

   • Good study habits improve information retention.
   • The patient's memory retention has declined with age.
   • She has excellent retention of facts and figures.

   同义词memoryrecallrecollectionremembranceretentiveness

   反义词oblivion

3. Liquid holding capacityB2formal

   The ability of a substance or material to hold or contain liquid.

   液体保持能力

   • This soil has high water retention, making it ideal for rice paddies.
   • The fabric's moisture retention keeps the skin hydrated.
   • Proper retention of fluids is essential for plant growth.

   同义词absorbencyabsorptionretentivenessretentivity