To rack one's brains; to ponder deeply and exhaustively, often in an effort to find ideas or words.
编剧为了让剧情更加引人入胜，真是翻肠倒肚，修改了无数次
To make the plot more engaging, the screenwriter truly racked his brains, revising it countless times.
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To rack one's brains; to ponder deeply and exhaustively, often in an effort to find ideas or words.