N-UNCOUNT
(雇员的)减员;(尤指学生或学员的)流失人数
Wastage refers to the number of people who leave a company, college, or other organization, especially before they have completed their education or training.
例句
British universities have very little wastage and their graduates are good...
英国大学的退学率很低,而且他们的毕业生很优秀。
Wages are low and the wastage rate of staff is high.
工资很低,员工的离职率很高。