We are unsure what threat there may be waiting in the marshes.
No estamos seguros de qué amenaza puede estar esperando en los pantanos.
She nervously approached the customs post, unsure what to expect.
Ella se acercó nerviosa al puesto de aduanas, sin saber qué esperar.
In that sense, I'm unsure what you're talking about.
En ese sentido, no estoy seguro de qué está hablando.
Consult your veterinarian if you are unsure what to use.
Consulta a tu veterinario si no estás seguro de qué usar.
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