If someone is suffering from amnesia, they have lost their memory.
People suffering from amnesia don't forget their general knowledge of objects.
Matt Haig的新书 The Midnight Library 也出现了这个表达：
to one's credit
If something is to someone's credit, they deserve praise for it.
①She had managed to pull herself together and, to her credit, continued to look upon life as a positive experience.
②Although the offences were horrific it was to her credit that she had owned up.
《新闻周刊》一篇题为 Is science too mean 也出现了这个表达：