to make someone or something work too hard or carry, contain, or deal with too much使不堪重负;使负担过重;使装载过多
Insurance companies are already overburdened with similar claims.保险公司已经被类似的索赔搞得不堪重负。
Now 5,000 new children will be attending the district's already overburdened school system.现在5000名新学童将要进入本地区已经超负荷运转的学校系统。