发起提问 · 2022-11-13 20:37 how do you make sure you have deleted something after you read it?时态问题
发起提问 · 2022-11-12 18:48 现在分词完成式(尤其时延续性动词)是否必须时分词动作/状态结束后,主语动作才开始?
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