It really depends! When a teacher speak in a class, it will

來源: 尋夢千裏 於 2023-03-23 12:16:00 [] [舊帖] [給我悄悄話] 閱讀數 : (166 bytes)
回答: 大聲說話是一種不好的習慣 由 QQ釋然 於 2023-03-23 10:50:51

be great to speak louder for the students to hear clearly.

Unless in public library, it'll be polite to chat as low in voice as possible. 

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