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| Russian | English |
| секрет мастерства | trick of the trade (Alexander Demidov) |
| секрет профессионального мастерства | trade secret (A trade secret is a piece of knowledge that you have, especially about how to do something, that you are not willing to tell other people. I'd rather not talk about it too much because I don't like giving trade secrets away. CCB Alexander Demidov) |
| секреты мастерства | know-how (Alex1888) |