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| English | Russian |
| catch off his guard | застать кого-либо врасплох |
| catch somebody off his guard | поймать врасплох (At least it might catch Sir Percy off his guard and make him tell Dick something useful. Dasharik) |
| catch someone off his guard | заставать врасплох |
| catch someone off his/her guard | заставать врасплох |