| |||
alternation of day and night; march of day and night (felog) | |||
day-night biorhythm | |||
the alternation of day and night | |||
nychtemeral (Игорь_2006) |
смена дня и ночи: 6 phrases in 5 subjects |
Agriculture | 1 |
Astronautics | 1 |
Aviation medicine | 1 |
Makarov | 2 |
Nautical | 1 |