When data requested in RAM is already stored in the cache like this it's called a cache hit, and if the data requested isn't in the cache, so you have to go to RAM, it's called a cache miss.

当在 RAM 中请求的数据已经像这样存储在缓存中时，称为缓存命中，如果请求的数据不在缓存中，则必须转到 RAM，这称为缓存未命中。