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支援、倒退、給…裝上背襯

學術名詞

• 備分件：航空太空、機械工程
• 後援：航空太空、機械工程
• 備用：通訊工程
• 備用設備：通訊工程

英文釋義

1. give moral or psychological support, aid, or courage to
2. move backwards from a certain position
3. establish as valid or genuine
4. make a copy of (a computer file) especially for storage in another place as a security copy