News now spreads rapidly via a multitude of formal and informal channels.

目前，通过正式和非正式的多种渠道快速传播各种消息。

youdao

The organization provides (formal and informal) channels of communication running in all directions through which information flows; and.

组织提供(正式的和非正式的)各个方向的沟通渠道，通过这些渠道信息得以流动；以及。

youdao

It lays the foundations for a national system of recognition, validation and certification for the competencies that adults have acquired through formal, non-formal and informal channels.

UNESCO: Country Profile: Cape Verde

The formal and informal channels by which migrant workers remit cash back to families and friends are directly lifting millions from abject conditions.

FORBES: Magazine Article