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once; in a while (zeev); on one occasion (We do not normally use could to say that somebody did something on one occasion. Instead, we use other expressions: I managed to run 10km yesterday in under an hour, Swan, PEU Alexander Demidov) | |||
singly | |||
in a scattering medium, light that has already been scattered once is scattered again |
один раз: 449 phrases in 60 subjects |