Along with this effort, we're working with animal advocates and state and federal lawmakers to strengthen anti-cruelty laws across the country, as well as supporting laws and policies that assist overburdened animal shelters that care for animal fighting
2016年12月四级真题（第三套）阅读 Section A
In a recent art assignment, a middle school student depicted an overburdened child who was being scolded for earning an A, rather than an A+, on a math exam.
2018年6月四级真题（第一套）阅读 Section B
柯林斯高阶英汉双解学习词典释义
ADJ-GRADED
（系统、机构等）负担过重的，不堪重负的
If a system or organization is overburdened, it has too many people or things to deal with and so does not function properly.