 |
| |||
| 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 |