英文原文：bus hug suck mother brother plug bug touch nut 英式音标：[bʌs] [hʌɡ] [sʌk] [´mʌðə(r)] [´brʌðə(r)] [plʌɡ] [bʌɡ] [tʌtʃ] [nʌt] 美式音标：[bʌs] [hʌɡ] [sʌk] [´mʌðər] [´brʌðər] [plʌɡ] [bʌɡ] [tʌtʃ] [nʌt]
