accentual

例句：

1. 1. The speaker's accentual pronunciation made it difficult for the listeners to understand him.
   说话者的带有口音的发音让听众很难理解他。
2. 2.The accentual differences in dialects are often a source of confusion for non-native speakers.
   方言中的口音差异常常给非本地人带来困惑。
3. 3. The accentual variation in the speech patterns is an important aspect of language learning.
   语音模式中的口音变化是语言学习的一个重要方面。