 |
| Subject | English | Russian |
| math. | be poorly known | мало изучен |
| gen. | poorly known | недостаточно изученный (контекстное значение) Much of the white-bellied sea eagle's behaviour, particularly breeding, remains poorly known. I. Havkin) |
| math. | poorly known | не полностью известный (напр., о величине
 clck.ru dimock) |