英文excuse单词音标k浊化音为什么不直接标注成g？

The sound change from /k/ to /g/ is known as voicing assimilation, which occurs when a voiceless sound (/k/) is followed by a voiced sound (/z/ in the case of "excuse"). It is a natural process in English pronunciation, and the resulting sound is not always spelled with a "g". Therefore, the correct phonetic transcription of "excuse" would be /ɪkˈskjuːz/.