bucket can的用法和样例：
例句
- A storage structure of 1 to 32 disk blocks that is used to store and transfer units of data in files with a relative or indexed file organization. Unlike a block, a bucket can contain only entire records.
由1至32磁盘信息块构成的一种存储结构。结合相对或索引文件组织，用于文件中数据单元的存储和传送。与信息块不同的是，存储桶只能包含整记录。
