it is customary to
| tip
| it is customary to abbr. | |
| math. | принято |
| tip abbr. | |
| gen. | кончик; конец; верхушка; наконечник; мундштук; прикосновение |
| |||
| принято | |||
|
it is customary to : 10 phrases in 4 subjects |
| General | 4 |
| Makarov | 2 |
| Mathematics | 3 |
| Scientific | 1 |