Definition: the ability to keep or continue having something Level: C2
公司的战略强调客户保留而非获取。
The company's strategy emphasizes customer ___retention over acquisition.
多媒体工具增强了复杂概念的保留。
Multimedia tools enhance the ___retention of complex concepts.
水分滞留是某些药物的常见副作用。
Water ___retention is a common side effect of certain medications.
