tā / jué / de / chuān / zhe / shuì / yī / qù / cān / jiā / zhèng / shì / huì / yì / hěn / bù / tǐ / miàn

他觉得穿着睡衣去参加正式会议很不体面。

He thought going to a formal meeting in pajamas would be very inappropriate.