To be troublesome or burdensome — to require a lot of care, attention, or effort.
子どもは可愛いが、まだ世話のかかる年頃だ。
Children are cute, but they're still at an age that requires a lot of care.
あの犬は世話のかかる性格で、毎日長い散歩が必要だ。
That dog is troublesome — it needs long walks every day.
このプロジェクトは細かい調整が多くて本当に世話のかかる仕事だ。
This project requires a lot of fine adjustments — it's really a troublesome job.