聲音的高低音 的英文怎麼說?

inflection = intonation = 音調、高低音

My voice is with almost no inflection. = 我的聲音幾乎沒有高低音(也就是聽起來像機器人的沒有音調的聲音)

eg The end of a sentence that is not a question is usually marked by falling intonation. On the other hand, the end of a question is usually marked by rising intonation.

pitch of the voice = 說話的音調 = 聲音的音調，但不同於 inflection 跟 intonation，請看以下例句:

Rising intonation means the pitch of the voice rises with time. = 音調上揚的意思是說話的音調隨著時間往上升