Experienced users have direct access to the main data files.

【direct】高级用户可直接在主数据文件存取资料。

It turned out my son was an early talker so by the time his second birthday arrived we had the main data set we wanted.

事实证明我儿子属于学说话很早的孩子，所以到他两岁生日的时候就已获取到了我们所需的主要数据。