You can view the current usage of disk blocks: which blocks free, which blocks are occupied by which files.
可以查看当前磁盘块的使用情况：哪些块空闲，哪些块被哪些文件占用。
On most systems, malloc and free are not reentrant, because they use a static data structure that records which memory blocks are free.
在大部分系统中，malloc和free都不是可重入的，因为它们使用静态数据结构来记录哪些内存块是空闲的。
Of course, ambitious goals, free thinking, responsible action, as well as good health, which are all critical building blocks for future success.
远大的目标，自由的思想，负责的行为，健康的体魄，这些都是我们未来成功的基础。
Of course, ambitious goals, free thinking, responsible action, as well as good health, which are all critical building blocks for future success.
远大的目标，自由的思想，负责的行为，健康的体魄，这些都是我们未来成功的基础。
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