By default, databases only track when a document was last modified, but by selecting the Maintain LastAccessed property option, the database can also track when a document was last read.

默认情况下，数据库只跟踪最近修改文档的日期，但是通过选择Maintain LastAccessed property选项，数据库也可以跟踪最近读取文档的时间。

youdao

All the sectors on a disk platter that can be read without moving the head constitute a track.

磁盘盘片在无需移动磁头的前提下即可读取的所有扇区组成一个磁道。

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You can track information related to read and write operations on a file with the help of auditing.

在审核的帮助之下，您可以跟踪对文件的读写操作的相关信息。

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The free version can't call back a message before it's read, or track when messages have been read.

CNN: Make your e-mail disappear

We'll keep track of your last page read, and make it easy.

ENGADGET: blogger-avatar

Once a track is selected, Flipboard users can read other sections while the audio plays in the background, an amazing new capability that lets people listen while they continue flipping through their Flipboard.

ENGADGET: Flipboard brings the noise in NPR-ified app update, Britta will be pleased