smother;make breathing difficult or impossible
"smother a yawn"
"muffle one's anger"
"strangle a yawn"
"Stifle your curiosity"
"The foul air was slowly suffocating the children"
"The child suffocated under the pillow"
He almost stifled her with caresses.
出自： H. Martineau
The air was stifling me and I longed for the open.
出自： W. Golding