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know back to front (источник –  goo.gl dimock) | |||
| know inside out | |||
| know backward and forward (VLZ_58); know inside and out (nist.gov Alex_Odeychuk) | |||
| have at one's finger-ends; have at one's fingertips; know something all to pieces | |||
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| know something in and out (Abysslooker) | |||
| know all the ins and outs of something; know something inside out; know something thoroughly; know something through and through | |||
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| know inside and out (Technical); know in side and out (MichaelBurov); know in side out (MichaelBurov) | |||
| know something inside and out (jouris-t) | |||
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| know inside out (на своём участке деятельности) | |||
| знать вдоль и поперёк: 7 phrases in 2 subjects |
| General | 5 |
| Makarov | 2 |