这种洗发水的刺激性让我的头发变得干燥打结。

The ___harshness of this shampoo made my hair dry and tangled.

他对员工的严厉态度让办公室氛围变得紧张。

His ___harshness toward the employees made the office atmosphere tense.

老师对作业要求的严格程度让学生们感到压力很大。

The ___harshness of the teacher's homework requirements made the students feel stressed.