Just as there are several backingstores other than disks, there are several kinds of streams other than file streams.
正如除磁盘外存在多种后备存储一样，除文件流之外也存在多种流。
2
But because legal tender laws backing the dollar have caused the dollar to drive other currencies out of circulation, it is easier for stores to accept dollars.
不过由于法定货币法对美元的支持，这导致了美元将其他货币逐出了流通环节，所以现在商铺更愿意接受美元。
3
GFS stores each chunk of data, typically 64mb in size, on at least three machines called chunkservers; master servers are responsible for backing up data to a new area if a chunkserver failure occurs.