xiàn shàng zhǎn shì shí, wèn tí kě néng bù zài jiào shì lǐ xiǎng qǐ, ér shì chū xiàn zài liáo tiān kuàng lǐ

线上展示时，问题可能不在教室里响起，而是出现在聊天框里。

During an online presentation, questions may not be asked aloud in the classroom but appear in the chat box.