| 单词 | double lock |
| 释义 | Word Frequency double lock(ˈdʌbəl lɒk) noun 1. a spring lock that can also serve as a deadbolt by an extra turn of the key 2. any protective system that uses two separate safeguards Word Frequency double-lock(ˌdʌbəlˈlɒk) verb (transitive) to lock by means of a double lock, or by more than one lock We double-lock our doors and clutch comforting cups of tea. |
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