xiàn shàng huì yì kāi shǐ hòu dà jiā tū rán tīng jiàn jiàn pán shēng kā fēi bēi shēng hé yī shēng hěn yuǎn de wèi

线上会议开始后，大家突然听见键盘声、咖啡杯声和一声很远的“喂”。

After the online meeting started, everyone suddenly heard keyboard sounds, coffee cup sounds, and a distant 'Hey'.