无形贸易

无的英语翻译：

naught; nonexistence; not; nothing; without; lack; zero
【医】 a-; leipo-; lipo-; non-

形的英语翻译：

appear; body; compare; entity; form; look; shape
【医】 appearance; morpho-; shape

贸易的英语翻译：

commerce; trade; traffic
【经】 commerce; commercial act; commercial transaction; deal