I missed a line from the english version. here is the complete one:
The sad truth is that what I could recall in 5 seconds all too soon needed 10, then 30, then a full minute - like shadows lengthening at dusk. Someday, I suppose, the shadows will be swallowed up in darkness.
These days I have better memory but life was easier when i had poor memory. Or i always have good memory but i intentionally forgot stuff. Now i try to remember everything happened although it is unhealthy.
最近我的記性好了，但記性差時日子會好過點。或者我的記性一直都很好，只是我故意地忘記東西。雖然不太健康，但現在我嘗試記起所有發生過的事。