/rul ʌv θʌm/ – Phrase
Definition: quy tắc thực nghiệm, theo kinh nghiệm.
A more thorough explanation: The legal English definition of the term “rule of thumb” refers to a general principle or guideline based on practical experience rather than specific rules or laws. It is often used as a rough estimate or approximation in the absence of precise measurements or standards.
Example: A common rule of thumb in contract law is that agreements must be in writing to be enforceable.