tā / zài / dà / jiā / miàn / qián / gù / zuò / duān / zhuāng / fǎn / ér / ràng / qì / fēn / gèng / gān / gà

她在大家面前故作端庄，反而让气氛更尴尬。

She pretended to be solemn in front of everyone, which only made the atmosphere more awkward.