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aim过去分词 may(过去式) aim(同义词) perfect(副词) video(复数) inviter(名词) fly(过去式)africa(形容词)wiling名词think形create名、形success动、形、副lose过去式、过去分词
求高手解答下面这个句子,inject和aim不就成两个动词了吗? 主句是the reasearch team injected chemicals into the paralysed rats,而aimed at.则是过去分词短语作原因状...