too much of a good thing

US /tuː mʌtʃ əv ə ɡʊd θɪŋ/
UK /tuː mʌtʃ əv ə ɡʊd θɪŋ/
"too much of a good thing" picture
1.

좋은 것도 지나치면, 과유불급

something that is enjoyable or beneficial but becomes harmful or unpleasant if there is an excessive amount of it

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Eating chocolate is nice, but too much of a good thing can make you sick.
초콜릿을 먹는 것은 좋지만, 좋은 것도 지나치면 병이 날 수 있다.
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Even a vacation can be too much of a good thing if it lasts for months.
휴가도 몇 달 동안 계속되면 좋은 것도 지나친 것이 될 수 있다.