详细释义 · 难度约 B2（AI 估计）
n.机构
An institution is an organization that has existed for a long time, especially one involved in education, public service, or charity.
The university is one of the country's oldest educational institutions.这所大学是该国历史最悠久的教育机构之一。
n.制度；惯例
An institution is a custom or way of doing things that is part of a society.
Marriage is an institution that takes different forms around the world.婚姻是一种制度，在世界各地有不同的形式。
n.收容机构；精神病院
An institution is a building where people live and receive care, sometimes because they have mental health problems.
He lived in an institution after the accident.事故发生后，他住进了一家收容机构。
