grand·fa·ther clause
noun/ˈɡrænfɑːðə(r) klɔːz/
/ˈɡrænfɑːðər klɔːz/
(North American English)- part of a new rule or law that does not apply to a particular group of people, allowing them to continue following the old rule or law
祖父条款：不适用于特定人群的新规则或法律的一部分，允许他们继续遵循旧规则或法律 - There was a grandfather clause, limiting the new, higher building and plumbing standards to future construction.
有一个祖父条款，限制了未来建设的新的、更高的建筑和管道标准。
- There was a grandfather clause, limiting the new, higher building and plumbing standards to future construction.