key

訳語

1. 音程おんてい
2. 基幹きかん
3. 決め手きめて
4. 鍵かぎ

英語の定義

1. metal device shaped in such a way that when it is inserted into the appropriate lock the lock's mechanism can be rotated

例文

• The key question is not what can I gain but what do I have to lose.
• You took the wrong key.

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