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ph.
後退; 倒退回去; 倒(車) They couldn't understand, so he backed up and told them once more. 因為他們不懂, 他就倒回去, 重又解釋一遍。
ph.
支持 He would have lost his position if you hadn't backed him up. 假如你當初沒有支持他,他可能已經失去職位了。
n.
後援 Do you have any back-ups in case I cannot be there? 假如我不能來,你們有沒有候補人員? adj.
作支援的
ph.
支持 He would have lost his position if you hadn't backed him up. 假如你當初沒有支持他,他可能已經失去職位了。
vi.
後退; 倒車; 向後倒 to back up a few yards 後退幾碼 vt.
證實 to back sth. up with sth. 通過某事物來支持某事物 to back up demands with threats 威脅著要滿足要求
PyDict
PyDict
ph.
【電腦】製作(文件、程序等的)複製件(以防原件丟失或損壞)
n.
備用電力 To prevent a power blackout, the power companies must keep a sufficient back-up power. 要防止停電,電力公司必須要有足夠的備用電力。
n.
備用電力 To prevent a power blackout, the power companies must keep a sufficient back-up power. 要防止停電,電力公司必須要有足夠的備用電力。