adoption
/əˈdɒpʃən/noun
mass noun
- the action or fact of adopting or being adopted（被）收养; （被）采用：
she gave up her children for adoption
她将孩子送人收养
the widespread adoption of agricultural technology
农业技术的广泛采用
as modifier an adoption agency.收养中介。
词源
Middle English: from Latin adoptio（n-）, from ad- 'to' + optio（n-） 'choosing' （see OPTION）.