attrition

1. N-UNCOUNT Attrition is a process in which you steadily reduce the strength of an enemy by continually attacking them. (对敌人持久攻击使其力量)削弱[正式]

The rebels have declared a cease-fire in their war of attrition against the government. 在与政府的消耗战中，叛军已宣布停火。

2. N-UNCOUNT At a university or place of work, attrition is the decrease in the number of students or employees caused by people leaving and not being replaced. (学生或雇员)人数减少[美国英语]

The company cut its workforce through natural attrition and fewer hirings. 该公司通过自然流失及减少招聘缩减了员工数量。