即使那些没有上锁的门对工人们来说也形同虚设。
Even the doors that were not locked were of no use to the workers.
我呆了大约20分钟，黛德推开了没上锁的隔板门。
I had been there for about twenty minutes when Dede pushed open the unlocked stall door.
当试图对已上锁的记录进行更新时，事务回滚并在稍后重新执行。
When updates were attempted on records which were already locked, the transaction was rolled-back and retried at a later time.
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