国际音标（International Phonetic Alphabet，简称IPA）是一种用于记录和比较世界上所有语言的语音的符号系统。在单词中标出国际音标，通常需要遵循以下步骤：
1. 了解单词的发音：你需要知道单词的正确发音。可以通过查字典或语音学资料来获取。
2. 确定音标符号：根据单词的发音，选择相应的国际音标符号。以下是48个国际音标符号的简要列表：
元音：
/i/ (如：ee in "see")
/?/ (如：i in "sit")
/e/ (如：e in "bed")
/?/ (如：a in "cat")
/ɑ?/ (如：a in "father")
/?/ (如：o in "cot")
/??/ (如：o in "more")
/u/ (如：u in "cup")
/?/ (如：oo in "book")
/?/ (如：u in "cup")
/??/ (如：er in "bird")
/?/ (如：uh in "cup")
/e?/ (如：ai in "cake")
/a?/ (如：i in "machine")
/??/ (如：oi in "choice")
/a?/ (如：au in "courage")
/??/ (如：oh in "no")
/u?/ (如：oo in "moon")
/??/ (如：ear in "ear")
/e?/ (如：air in "air")
/??/ (如：ure in "sure")
辅音：
/p/ (如：p in "pat")
/b/ (如：b in "bat")
/t/ (如：t in "top")
/d/ (如：d in "dog")
/k/ (如：k in "cat")
/g/ (如：g in "goat")
/f/ (如：f in "fat")
/v/ (如：v in "vat")
/θ/ (如：th in "think")
/e/ (如：th in "this")
/s/ (如：s in "sat")
/z/ (如：z in "zoo")
/?/ (如：sh in "she")
/?/ (如：zh in "measure")
/t?/ (如：ch in "cheek")
/d?/ (如：j in "jam")
/h/ (如：h in "hat")
/m/ (如：m in "mat")
/n/ (如：n in "net")
/?/ (如：ng in "sing")
/l/ (如：l in "let")
/r/ (如：r in "red")
/w/ (如：w in "wet")
/j/ (如：y in "yes")
/?/ (如：t in "stop" 或 d in "dog")
/?/ (如：? in "sigh")
/?/ (如：sh in "she")
/t?/ (如：ch in "cheek")
/d?/ (如：j in "jam")
/s/ (如：s in "sat")
/z/ (如：z in "zoo")
/ts/ (如：ts in "cats")
/dz/ (如：dz in "dogs")
/t?/ (如：ch in "cheek")
/d?/ (如：j in "jam")
/s/ (如：s in "sat")
/z/ (如：z in "zoo")
3. 标注音标：将音标符号放置在单词上方，通常使用短横线（?）和长横线（?）来表示音节的开始和结束。例如：
"cat" 可以标注为 /k?t/
"pat" 可以标注为 /p?t/
"bat" 可以标注为 /b?t/
请注意，国际音标的使用可能因语言和地区而异，因此在使用时，最好参考相关资料以确保准确性。
