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She was deeply concerned about how much it was going to cost to get her car fixed.
concerned라는 말을 보면 바로 걱정(worried)하고 있다는 것을 알수 있다.
she felt at ease, knowing she could easily afford it. at ease라는 말을 보면
안심(relived) 하고 있다는 것을 알수 있다.
따라서 답은 ① worried → relieved
