音标: 英 [sʌbmə'ʃi:n] 美 [sʌbmə'ʃi:n]
1. You may as well have submachine guns in your mouths.
嚼口香糖好比在嘴里开冲锋枪
2. This cop stepped to the door with a submachine gun and you could see was a silhouette.
警察拿着冲锋枪进了房间 你可以看到一个侧影
