submachine gun
US /ˈsʌb.mə.ʃiːn ˌɡʌn/
UK /ˈsʌb.mə.ʃiːn ˌɡʌn/

1.
기관단총, 서브머신건
a light automatic gun firing pistol-caliber ammunition, designed for close-quarters combat.
:
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The police officer carried a submachine gun during the raid.
경찰관은 급습 중에 기관단총을 휴대했다.
•
The soldiers were equipped with rifles and submachine guns.
병사들은 소총과 기관단총으로 무장했다.