They are engaged in interior trade.

他们从事国内贸易。

youdao

The interior trade in both countries boomed again.

两国的国内贸易也重新繁荣起来。

youdao

The art form is reflected on trade marks, advertisement, interior decoration, fashion design, book binding, stamp design and cartoon books.

在产品包装设计、商标广告、室内装潢、服装设计、书籍装帧、邮票设计、连环画等处都有它的影子。

youdao

Bitter was looking for new customers, but didn't want to cannibalize his wholesale trade with interior decorators.

FORBES: Sibling rivalry

Ayad Allawi, another Shia who was in exile in London, has gone some way to picking up the remnants of the Baath party, making links to trade unions and beefing up the revamped interior ministry he now controls.

ECONOMIST: Iraq

Mikhail Pashkin, who heads a Moscow police trade union, is now reviewing the personnel issue as part of a working group on further Interior Ministry reform.

FORBES: And You Thought The U.S. Was A Police State...