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официальная обстановка (You'll sound pretty ridiculous if you address a friend with his last name: "Привет, Иванов", for example. But you can use a last name in an official setting: "Господин Иванов". –  learningtoknowrussian.com dimock) | |||
| official setting: 1 phrase in 1 subject |
| Foreign exchange market | 1 |