If an application crashes in the middle of a transaction, when it restarts, transaction recovery will roll back the open transaction.
如果在事务进行期间应用程序崩溃，则在重启时，事务恢复将回滚该事务。
2
She let her head fall against the scratched window and watched a group of young men awkwardly roll a large rock into the middle of the street to disrupt traffic.
她把头搭在布满划痕的车窗上，看着一群年轻人笨手笨脚地把一块大石头滚到路中间去阻断交通。
3
But they shouldn't always play the music so loudly, rock and roll, you know, even in the middle of the night!