隐蔽摄像头
Concealed camera
以上为机器翻译结果，长、整句建议使用 人工翻译 。
一些公司依赖于尿分析法甚至隐蔽的摄像头来找到吸毒者。
Some firms have come to rely on urinalysis and even hidden cameras to locate drug users while others provide rehabilitation clinics for workers who choose their jobs over drugs.
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