| 单词 | controlled substance |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔controlled substance〕A drug or chemical substance whose possession and use are regulated under the Controlled Substances Act.管制药物：对其拥有或使用受到《管制物质法案》制约的药物或化学物质美国传统〔police dog〕A dog trained to aid the police, as in tracking criminals or detecting controlled substances.警犬：经过专门训练来协助警察的狗，如在追踪犯罪分子或搜寻受控制物品中美国传统 |
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