It is necessary to establish the formal compulsory and informal institution.

必须确立从强制性的正式制度到重要的非正式制度。

youdao

The institution consists of formal institution, informal institution and operating mechanism, etc.

制度包括正式制度、非正式制度以及实施机制等诸多因素。

youdao

Microscopically, it is an informal institution for the individuals to pass information, establish credit and make deals.

在微观上，它是个体间传递信息，建立信任，交易合作的一种非正式制度；

youdao

Across the harbour there's Kalky's, an informal fish and chip shop that's something of a local institution.

BBC: The perfect trip: South Africa

Charity officials asked Mrs Justice Nicola Davies to end an informal segregation regime - known as "restriction on the wing" - at the young offenders' institution.

BBC: Ashfield young offenders begin legal battle