As I came across a box that was up but with no house, I checked, and there was mail—outgoing mail—in it.

我偶然发现了一个打开着的信箱，但它不隶属于任何一个房屋，然后我检查了一下，发现里面有一封外发邮件。

youdao

youdao

There were no instructions on how to fasten the carrying strap to the box.

没有如何把背带系在箱子上的说明。

《柯林斯英汉双解大词典》

Chief Executive Steven Pearse grandly predicts that Cyras could be worth 20 times that by the summer debut of its first product, a box no bigger than a TV set doing the work of a half-dozen large routers and phone switches.

FORBES: The God Box

No box, no price, no release date, and a lot of games that look like hi-res versions of what we've played before.

BBC: PlayStation 4: Web reaction to Sony's 'invisible' console

Is it so hard to picture this migration: Big-box to small-box, to no-box at all?

FORBES: Office Depot To Buy OfficeMax? And Then There Were Two.