塑料套在头上可能会导致窒息。

Putting a plastic bag over your head can ___suffocate you.

这段感情让她感到窒息，想逃离。

The relationship ___suffocates her and makes her want to escape.

消防员用湿毯子扑灭了厨房的小火。

The firefighter ___extinguishes the small kitchen fire with a wet blanket.