During the war, there was a thriving black market in food.
战争期间，黑市买卖食品十分盛
。
During the war, there was a thriving black market in food.
战争期间，黑市买卖食品十分盛。
In this country pornography was once sold under the counter.
国, 色情书画曾一度黑市出售。
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