“腋窝”的英语表达是 armpit，读音为英式 /ˈɑːmpɪt/，美式 /ˈɑːrmpɪt/ 。
例句：
He wiped the sweat from his armpit.（他擦去了腋窝的汗水。）
The smell of his armpit was quite strong.（他腋窝的气味很浓。）