这限制了一个磁盘上的主分区数量，最多为4个。

This limits the number of primary partitions on a disk to four.

youdao

主要困难是4个主分区的限制。

Chief among these is the limitation of four primary partitions.

youdao

主要困难是4个主分区的限制。

Chief among these is the limitation of four primary partitions.

youdao