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词汇
backup
释义
backup
backup
D.J.:[ˈbækʌp]
K.K.:[ˈbækˌʌp]
n.
1.
■
替代物; 备用品; 支援人员, 后备, 后补, 助手
The hospital has a backup generator in case there is a power failure.
医院有备用发电机以防停电。
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更新时间:2026/8/14 0:40:16