Read Edit View history 永动机 yǒngdòngjī perpetual motion machine Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 永动机/永動機 · yǒngdòngjī · perpetual motion machine 2026/03/04 永动机 / 永動機 yǒngdòngjī perpetual motion machine perpetual motion machine 科学家已经证明，制造永动机是不可能的。 noun created sense Mar 4, 2026, 02:25 AM