This replaces your copy with the master copy.

这会以主副本替换您的副本。

youdao

He ordered the original master copy of Lale Andersen's recording destroyed.

他命令销毁拉尔·安德森录制这首歌所用的母带。

youdao

A prized object in the factory is the stamper, the master copy of a software product that takes great precision to produce.

压模，软件产品的主拷贝，需要极大的精度去生产，是工厂的一件弥足珍贵的物品。

youdao

And the ebook and the printed version will come from the same master copy of that subbed and perfect version.

FORBES: Why Are Ebooks Riddled With Typos?

The master copy of the interview was lost in transit, but director Paul Sen had secretly kept a copy on VHS tape, Cringely said.

CNN: Mark Milian,

"You can have a master copy of PC Cillin that makes sure all your copies are up to date just by clicking on one, " says Mr Craig from Trend Micro.

BBC: NEWS | Technology | Home PC face security onslaught