English version

a lock on something

From Longman Dictionary of Contemporary Englisha lock on somethinga lock on somethingAmerican English complete control of something Pro football still has a lock on male viewers aged 18 to 34. lock
Examples from the Corpus
a lock on somethingHis parents were not surprised when he asked for a lock on his bedroom door before he had reached his teenage years.Republicans in Congress, used to having a lock on the White House, began attacking Clinton at once.The lack of a lock on the one and only toilet was compensated for by the frosted glass panels in the door.For security a lock on the front locks both the system and the keyboard.Straightening, she reflected soberly that the only thing missing was a lock on the bedroom door.
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