Anglais ⇄ Russe +

it is customary contraintes
génér.	принято (to)
Gruzovik, inform.	повадно
inform.	повадно
math.	традиционно (to express и т.п.)
it is customary to
Gruzovik	принято

it is customary : 13 phrases, 4 sujets

Général	5
Makarov	2
Mathématiques	5
Scientifique	1