asphyxiate
verb [ T often passive ] formal uk/əsˈfɪk.si.eɪt/ us/əsˈfɪk.si.eɪt/
使窒息（而死）;使闷死
to cause someone to be unable to breathe, usually resulting in that person's death
The murder inquiry found that the children had been asphyxiated. 对谋杀案的调查发现孩子们是被闷死的。