hard and fast什么意思
1. 不能改变的：free and easy 随和 | hard and fast 不能改变的 | open and above board 光明磊落
2. 严格;严密：Happiness lies first of all in health. 幸福首要是健康 | hard and fast 严格;严密 | Harm set; harm get. 害人反害己
3. (规则等)严格的：learn sth the hard way经过艰难困苦而学到 | hard and fast (规则等)严格的 | hardwaren.金属日用器皿,计算机硬件
4. 不可违逆的：hard 硬的 | hard-and-fast 不可违逆的 | hard-bitten 不易对付的
1. （规则、信息等）固定不变的，明确的
If you say that there are no hard and fast rules, or that there is no hard and fast information about something, you are indicating that there are no fixed or definite rules or facts.
e.g. There are no hard and fast rules, but rather traditional guidelines as to who pays for what...
关于谁来支付什么费用并没有明确的规定，只是遵循传统的准则罢了。
e.g. At the moment there's no hard and fast timetable.
目前还没有明确的时间表。
1. But the company executives need to remain cautious and alert during this fast development, because any more quality scandals will almost certainly undo all their hard work.
2. The hard reality however is that to grow and go global means that a fast follower strategy is no longer sufficient for China.
3. We have yet to play it hard and fast the two years we've played.
4. " I advise not to lay down hard and fast rules in the law, " he said.
5. Hard and fast rules on proper conduct hardly exist any more, however.
6. He is working hard and learning fast to become a village Party chief someday.
7. China has been trying hard to maintain steady and relatively fast economic expansion to provide the world with a key source of growth.
8. Shanghai is trying hard to reclaim its reputation as Paris of the East and is rising fast as Asia's newest financial center.
9. China changes so fast and is such a large and complex country, it is rather hard for authors to fully capture China.
10. hard and fast的反义词
10. The oar fluttered up and down so fast that even young people would have a hard time competing with him.