1. 记忆力强的
If you have a retentive memory, you are able to remember things very well.

1. having the power, capacity, or quality of retaining water

e.g. soils retentive of moisture

2. good at remembering

e.g. a retentive mind
tenacious memory

Synonym: recollectivelongtenacious

3. having the capacity to retain something