When the team gets assigned to infiltrade an illegal chakra-trading ring, Lee goes to Sai for advice on how to blend in with the crowd. A nefarious neer-do-well keeps leaving the village bathrooms a filthy disgusting mess, so Tsunade appoints Lee's team as guards.
"We're in." "A low profile." 
This must be an undercover operation.
O sea que esto es una misión encubierta.
Entonces esto es una 
misión encubierta, ¿cierto?
"Infiltrar", "sem chamar atenção", esta
deve ser uma operação secreta.