truant|truants

校长警告那些经常逃学的学生要按时上课。

The principal warned the ___truant students to attend classes on time.

校长警告那些经常逃学的学生会有严重后果。

The principal warned the frequent ___truants about serious consequences.

那个经常逃课的学生已经被老师标记为长期旷课者。

The student who often skipped classes was marked as a chronic ___truant by the teacher.