좁은 우리에 갇힌 코끼리가 병들어버리듯 = Like an elephant confined in a small cage gets sick.
병들다 (to get sick; to fall ill) is a common word. "to get into a bottle" would be 병에 들어가다, but it is not nearly as common as 병들다.
October 9, 2019
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