Short explanation (for a 7-year-old):
- The combine harvester is a big farm machine.
- First it cuts the plants that have grains on top (the heads or ears).
- Then it shakes or beats the heads so the little grains fall out.
- The machine collects the grain and leaves the straw behind.
Five rephrasings in English (simple):
- The combine harvester cuts the wheat heads and knocks the grain out.
- The machine slices off the grain heads and shakes the seeds free.
- The harvester cuts the stalks and beats the grains out of the heads.
- It cuts the plants and rattles the grain loose.
- The combine cuts the crop and takes the grain out of the heads.
Five rephrasings in Russian (simple):
- Комбайн Ñрезает пшеницу и выбивает из колоÑьев зерно.
- Машина Ñрезает раÑÑ‚ÐµÐ½Ð¸Ñ Ð¸ вÑтрÑхивает из них зерно.
- Комбайн отрезает Ñтебли и вытрÑхивает зерна из головок.
- Он Ñрезает колоÑÑŒÑ Ð¸ выбивает из них зерно.
- Комбайн Ñрезает урожай и отделÑет зерна от колоÑьев.