st_atime -- the last access time

st_atime——最后的访问时间

Last access time (.lat) expiration.

最后访问时间(. LAT)过期。

Data that needs to have subsecond access time.

需要具有亚秒(subsecond)存取时间的数据。

The results form displays only the last access time .

所结果窗体中仅显示上次访问时间。

The database, which typically will have the slowest access time.

数据库，通常访问时间是最长的。