1 [C] a person's ability to remember things 记忆力；记性: to have a good/bad memory 记忆力好╱差The drug can affect your short-term memory. 这种药物可能影响短时记忆。

2 [C,U] the part of your mind in which you store things that you remember 记忆: That day remained firmly in my memoryfor the rest of my life. 那一天牢牢地留在我的记忆里，永不磨灭。Are you going to do your speech from memory, or are you going to use notes? 你这次讲话是凭记忆的，还是要用讲稿的？

3 [C] something that you remember 回忆；记忆中的事物: That is one of my happiest memories. 那是我最快乐的回忆之一。childhood memories 童年的回忆

4 [C,U] the part of a computer where information is stored 存贮器，内存（计算机内贮存数据的部份）: This computer has a 640k memory/640k of memory. 这部计算机有640k的存贮量。