最終更新日：2025/11/20
In phonetics class, the teacher asked us to hold a long vowel at roughly one and a half to twice the duration of a short vowel so we could observe the contrast.
正解を見る
In phonetics class, the teacher asked us to hold a long vowel at roughly one and a half to twice the duration of a short vowel so we could observe the contrast.
音声機能が動作しない場合はこちらをご確認ください
編集履歴（0）
