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1、see sb do sth 看见某人做过某事。I often see him draw a picture.
2、 see sb doing sth 看见某人正在做某事。When I pass the window I see him drawing a picture.
3、 be seen to do ,用于被动语态还原to。He is seen to draw a picture.
天气预报查询提供全国天气预报,旅游天气预报,国际天气预报,天气资讯 ,天气预报网数据来源中国天气预报网，天气预报查询仅供参考!