• VOA流行美语 Unit 146: smack dab/ring a bell VOA流行美语Unit146:smack-dab/ringabell李华和Larry正在超级市场买菜。今天李华会学到两个常用语:smack-dab和ringabell.(Ambiencesoundinsupermarket)LH:Larry,你在笑什么啊?LL:Didn'tyouseethatladywalksmack-dabin......