Surveil Them偷窥他们
Surveil the strangers跟踪陌生人
Automatic Dependent Surveil- lance-Contract合同式
epidemiological surveil-lance and containment流行病学监测与防疫措施
同义词：followsurvey
V（动词） to observe closely the activities of (a person or group) 监视(人或团体)