swim 动词原形swam 动词的过去式swum 是 swim 动过去分词，辩前 如： He has already swum in the swimming pool. 他已经在游泳池游完凯樱泳了祝你学习进步，更上一层楼！ (*^__^*) 不明白的再问哟，请及时采纳，多谢！携孙清
swim与swum
Simone
发布于 2023-09-30 20:10:04
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