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утруднять v stresses
Gruzovik	make more difficult; make more complicated; aggravate
Игорь Миг	inconvenience
Gruzovik, inf.	cause someone trouble; be a source of trouble to; give someone trouble; make matters difficult for (someone)
inf.	be a source of trouble (to); cause
утрудняться v
gen.	aggravate; make more complicated; make more difficult
Gruzovik	become more difficult; become more complicated
inf.	cause; give someone trouble; make matters difficult for (someone); be a source of trouble (to)