suffocate|suffocated|suffocates

过度的规章制度会扼杀员工的积极性。

Excessive regulations will ___suffocate the employees' motivation.

她父母的过度保护让她感到窒息。

Her parents' overprotection made her feel ___suffocated.

这段感情让她感到窒息，想逃离。

The relationship ___suffocates her and makes her want to escape.