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довольно сложно

stresses
gen. rather difficult (TranslationHelp); pretty tricky (If you don't have your manual, that could be pretty tricky. ART Vancouver)
довольно сложный
gen. pretty tricky (ART Vancouver)
довольно сложно
: 10 phrases in 5 subjects
General4
Makarov1
Programming2
Scientific2
Surgery1