Read Edit View history 备用 bèiyòng HSK7 spare Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 备用/備用 · bèiyòng · spare 2026/03/04 备用 / 備用 bèiyòng spare kept in reserve for use as a substitute or in case of emergency 他总是随身带一把备用钥匙。 verb created sense Mar 4, 2026, 02:25 AM