noun
drug deal; drug trafficking; drug trade
Refers to the illegal buying, selling, or trading of narcotics. Can be used for a single transaction or the broader illicit business.
警察は大規模な麻薬取引の容疑で数人を逮捕した。
The police arrested several people on suspicion of large-scale drug trafficking.
彼は麻薬取引で捕まった。
He was caught in a drug deal.