有必要用一个备用部件来替换它。

It will be necessary to replace it with a spare unit.

youdao

A：每个零部件都要有备用件吗？

A: Do we need spare parts for every component?

youdao

每个零部件都要有备用件吗？

Do we need spare parts for every component?

youdao

每个零部件都要有备用件吗？

Do we need spare parts for every component?

youdao