• VOA流行美語 Unit 146: smack dab/ring a bell VOA流行美語Unit146:smack-dab/ringabell李華和Larry正在超級市場買菜。今天李華會學到兩個常用語:smack-dab和ringabell.(Ambiencesoundinsupermarket)LH:Larry,你在笑什麼啊?LL:Didn'tyouseethatladywalksmack-dabin......