英语随手拍视频怎么说

"Spontaneous video" or "impromptu video" are both good options for describing a video that is recorded on the spot, without prior planning or preparation. "Candid video" could also work, as it suggests a sense of honesty and authenticity in the recording. For example, you could say: "I recorded a spontaneous video while walking through the park" or "I captured an impromptu video of my friend singing at a party."