原子性使得这两个操作——从储蓄帐户减钱和向支票帐户加钱——被当作单个事务处理。
Atomicity enables the two operations—the subtraction from the savings account and the addition to the checking account—to be treated as a single transaction.
对于大多数用户而言，这意味着不需要创建新的操作系统用户帐户。
For most users, this means there is no need to create a new operating system user account.
它将会认证操作系统上的帐户。
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