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Observation | |
gen. | observation; covert surveillance |
crim.law. | discreet surveillance; monitoring |
environ. | surveillance |
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observation; covert surveillance | |||
discreet surveillance; monitoring | |||
surveillance | |||
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observations |
observation : 3 phrases in 3 subjects |
Biology | 1 |
Criminal law | 1 |
Medical | 1 |