这个孩子异常的行为让老师们感到担忧。

The child's ___abnormal behaviour worried the teachers.

检测显示他血液中的激素水平异常。

Tests revealed ___abnormal hormone levels in his blood.

长期生活在如此持续的压力下根本不正常；这是反常的。

Living under such constant stress is simply not normal; it's ___abnormal.