asphyxiate|asphyxiated|asphyxiating

塑料袋套在头上会导致窒息。

A plastic bag over the head can ___asphyxiate a person.

在拥挤的地铁里，我感到快要窒息了。

I felt ___asphyxiated in the crowded subway.

会议室里的气氛令人窒息，没人敢提出反对意见。

The ___asphyxiating atmosphere in the meeting room made everyone afraid to voice dissent.