Handed
作动词 hand 的变形：把某物递给某人（handed me the keys）；固定搭配 handed in 上交、handed out 分发、handed down 传给下一代。作形容词常与 left-/right- 连用：left-handed 左撇子。
- “She handed the report to her manager before noon.” (她在中午前把报告交给了经理。)
- “Volunteers handed out water bottles after the marathon.” (志愿者在马拉松结束后分发瓶装水。)
- “The recipe was handed down from her grandmother.” (这道菜谱是她祖母传下来的。)
古英语 hand（手），动词 hand 由“用手递出”引申为“交给”。
hand + -ed（过去式/过去分词）；复合形容词 left-handed 中 -ed 表“具有……特征的”。
职场与学校常见 handed in your homework；法律语境 handed over evidence 移交证据。体育评论 handed the ball off 指传球交接。
- 固定搭配: “handed in” (上交), “handed out” (分发), “handed over” (移交), “handed down” (传承)
- 原形: hand；名词: hand
想到“用手（hand）递出去”，-ed 表示“已经递完了”。
“He handed his resignation letter to HR and left the office quietly.” (他把辞职信交给人事部，安静地离开了办公室。)