heroin

他曾经沉迷于毒品，尤其是海洛因。

He was once addicted to drugs, especially ___heroin.

警方在他的公寓里发现了大量海洛因。

The police found a large quantity of ___heroin in his apartment.

警方在突击行动中缴获了大量海洛因。

The police confiscated a large quantity of ___heroin during the raid.