Read Edit View history 后备 hòubèi HSK7 reserve Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 后备/後備 · hòubèi · reserve 2026/03/04 后备 / 後備 hòubèi reserve reserve; backup 我们需要准备一套后备方案。 adjective created sense Mar 4, 2026, 02:25 AM