in-house
adjective, adverb uk/ˌɪnˈhaʊs/ us/ˌɪnˈhaʊs/
在组织内部的;在机构内部的
Something that is done in-house is done within an organization or business by its employees rather than by other people.
an in-house training scheme 内部培训计划
All our advertising material is designed in-house. 我们所有的广告材料都是由内部设计的。