crestfallen

考试失利后，他看起来垂头丧气的。

He looked ___crestfallen after failing the exam.

比赛失利后，他垂头丧气地离开了球场。

After losing the match, he walked away ___crestfallen from the field.

考试不及格后，他低着头走出教室，一副垂头丧气的样子。

After failing the exam, he walked out of the classroom with a ___crestfallen look.