spy on
US /spaɪ ɑːn/
UK /spaɪ ɑːn/

1.
espionar, vigiar
to secretly watch someone or something, especially to obtain information
:
•
The government was accused of trying to spy on its own citizens.
O governo foi acusado de tentar espionar seus próprios cidadãos.
•
She felt like someone was spying on her.
Ela sentiu como se alguém estivesse espionando-a.
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