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barrier
mastery UK /ˈbæɹi.ə(ɹ)/ US /ˈbæɹi.ɚ/nounverbname
card 1 of 10 · fill in the blank
The government is working to break down _____ to trade between the two countries.
card 1 of 10 · fill in the blank
The government is working to break down _____ to trade between the two countries.