dà / jiā / dōu / zài / rèn / zhēn / tǎo / lùn / wèn / tí / tā / què / tū / rán / yáng / kuǎn / qǐ / lái / nòng / de / chǎng / miàn / hěn / gān / gà

大家都在认真讨论问题，他却突然佯款起来，弄得场面很尴尬。

Everyone was seriously discussing the issue, but he suddenly started making a scene and made things awkward.