naturalization
naturalisation, n [U]
naturalizing or being naturalized 归化; 入籍; 引进
[attrib 作定语]
naturalization papers, ie documents that prove that a person has been made a citizen of a country 归化证书.
🗣️ 情景例句
A couple of weeks.
两、三个星期吧。
Insecticides destroy many harmful bugs.
杀虫剂能驱除许多害虫。
This is not easy, and may require two porpoises working together.