医生警惕那些表现出频繁更换诊所和处方行为的病人，这可能是寻药的特征。

Doctors are wary of patients showing frequent clinic-hopping and prescription behavior, as it may indicate ___drug-seeking tendencies.

医生注意到病人有明显寻求药物的行为迹象。

The doctor noticed clear signs of ___drug-seeking behavior in the patient.