contraband

The driver was arrested because the police found contraband cigarettes in his van.

用法提示：contraband 作形容词，修饰 cigarettes，表示‘非法买卖的’。

Any contraband materials will be confiscated at the checkpoint.

用法提示：contraband 作定语修饰 materials，表示‘禁止交易或携带的’。

The medicine they sold was considered contraband because it had never been approved.

用法提示：contraband 作表语，说明主语 medicine 的性质，表示‘被禁止交易的’。