If something perturbs you, it worries you quite a lot.
例句
What perturbs me is that magazine articles are so much shorter nowadays.让我不安的是现在杂志文章都短多了。
英英词典释义
Adjective
1. causing distress or worry or anxiety;
"distressing (or disturbing) news""lived in heroic if something distressful isolation""a disturbing amount of crime""a revelation that was most perturbing""a new and troubling thought""in a particularly worrisome predicament""a worrying situation""a worrying time"