hard-and-fast

adj.

不可违逆的，必须遵守的，（船）牢牢搁浅的；

Hard and Fast
Hard and Fast
HARD AND FAST
Management of multiple organ failure: guidelines but no hard-and-fast rules.
Why It's Tough to Have Hard-and-Fast Rules About Operations Manuals
5 Hard-and-Fast Rules of Networking
Antitrust Enforcement and Business Cycles: Contingent Play or Hard-and-Fast Rule——Take U.S. as an Example
The ProPublica Blog: Despite Lessons from Lehman, Financial Reform Bill Sets No Hard-and-Fast Rules on Liquidity
Antimicrobial Therapile of severe sepsis and septic shock - that, Hit-hard-and-fast approach
Antimicrobial therapy of severe sepsis and septic shock - the "hit-hard-and-fast"concept.
So, what is a species? Richard Butler searches for a hard-and-fast rule to classify species and geni. (News Feature).
There are no hard-and-fast rules to pricing service agreements
A line in the sand: in two important the rulings, the Supreme Court makes it clear that there are no hard-and-fast rules when it com...