Now that the kids have left home we've got a lot of extra space.

孩子们都离开家了，我们住着就更宽绰了。

《牛津词典》

How will that extra space benefit you? (you're worth it.)

多余的空间是如何让你获益？

youdao

The extra space can reduce overflows and index page splits.

额外的空间可以降低溢出和索引页拆分。

youdao

rent extra classroom space; and offer night classes running as late as 2:30 in the morning, just to fit everyone in.

VOA: standard.2009.12.14

Oh, and by the way, your significant other will appreciate the extra space too.

FORBES: Of Indian Summer, Shredders, and Trash Pulls

It is thought someone already living in Sandbanks might want the garage for extra space for family or visitors.

BBC: NEWS | UK | England | Dorset | Beachside garage to fetch ?50,000

Beware: In some cases, anchor tenants have an arrangement where they can take over extra space as they need it.

FORBES: How can I find cheap digs for my small business?