No. 9,008 in Korean
개선했고
"개선했고" means "improved" (past tense).
In a sentence
회사의 복지 정책을 개선했고, 직원 만족도가 높아졌습니다.
We improved the company's welfare policies, and employee satisfaction has increased.
In this sentence, '개선했고' is used in the past tense, indicating that the improvement action has been completed.
도로를 개선했고 교통이 더 원활해졌습니다.
We improved the roads, and traffic has become smoother.
Here, '개선했고' refers to the improvement of infrastructure, showing causality linked to better traffic flow.
제품의 성능을 개선했고 판매량이 급증했습니다.
We improved the product's performance, and sales have surged.
In this context, '개선했고' highlights an enhancement in product characteristics leading to increased sales.
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