他对这个问题研究了好几周，咨询了多位专家，最后向董事会汇报了结果。
He researched the issue for weeks, consulted several experts, and finally presented his findings to the board.
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researched英 /rɪˈsɜːtʃt/|美 /rɪˈsɜrtʃt/
consulted英 /kənˈsʌltɪd/|美 /kənˈsʌltɪd/
presented英 /prɪˈzentɪd/|美 /prɪˈzɛntɪd/
解释
三个过去式 (researched → consulted → presented) 通过逗号和 finally 串联成逐步推进的事件链：先研究、再咨询、后汇报，finally 标记终点。
He researched the issue for weeks, consulted several experts, and finally presented his findings to the board.
三个过去式 (researched → consulted → presented) 通过逗号和 finally 串联成逐步推进的事件链：先研究、再咨询、后汇报，finally 标记终点。