One way to clear working memory is to delete data blocks that are no longer needed.

清除工作记忆的一种方法就是删除那些已经没用的数据块。

youdao

Dear baby who you do not know how much I think you want to delete memory that they say is false nonsense.

亲爱的娃们你们不知道我有多想你们，他们说要删除记忆那也是虚假的废话。

youdao

I'm going to delete that arrow and actually draw s2 as pointing to this chunk of memory because whereas before this sequence of chars might have lived at address 71 or whatever, well, this one might live at 91.

我不会把那个箭头删除，实际上我画了s2作为,这块内存的指针，因为,这个字符序列存储在地址71或其它的地方，这个可能存储在91的地方。

哈佛公开课 - 计算机科学课程节选