You can not lay down hard and fast rules.

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。

《柯林斯高阶英汉双解学习词典》

Use this advantage to hard and fast one tank at a time.

利用这一点,快又狠地打击一个目标.

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At the moment there's no hard and fast timetable.

目前还没有明确的时间表。

《柯林斯高阶英汉双解学习词典》

I believe in living passionately hard and fast like a steam train, and touching souls.

我相信生活要充满激情,对人放开怀抱,像一辆蒸汽火车般坚定不移, 而且拥有令人感动的精神.

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Road and bridge area on this year's public funds management has a hard and fast rules.

路桥区对今年的公用经费管理有着硬性规定.

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We must make it a hard and fast rule against smoking in the office.

我们必须严格规定:办公室里不准吸烟.

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We stuck hard and fast on the rocks in the middle of the river.

我们被阻滞在河当中的礁石上.

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The firm hard and fast rules to limit the scope of our work.

公司没有限制我们业务范围的严格规定.

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I didn't make any hard and fast decisions.

我没有做出任何不容更改的决定.

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No principles are hard and fast.

没有什么原则是一成不变的.

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It is a hard and fast contract.

这是一项不能变动的契约.

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No hard and fast line can be drawn between the two.

二者不能截然分开.

《现代汉英综合大词典》

It is impossible to lay down any hard and fast rules.

想要制定出任何不容更改的规则是不可能的.

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He's a hard-bitten old soldier.

他是位坚强的老兵.

《简明英汉词典》

He was a hard-bitten, good-tempered, intelligent fellow.

他的棱角已经磨手, 成为聪明坚忍 、 脾气很好的人了.

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SAM : They were a couple of really bad eggs. Hard boiled and rotten as they come.

他们就是一对坏蛋! 他们是熟透了的臭蛋.

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One dive shop features a scuba diving Easter bunny hiding hard boiled eggs.

一家潜水商店推出特色活动,派人装成复活节兔子努力地将煮沸了的蛋藏到海底.

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Each of us was offered hard boiled eggs to eat.

我们每人得到一个水煮蛋.

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Orange juice, coffee, toast with bacon and one hard boiled egg for sir.

先生需要橙汁 、 咖啡 、 土司配培根和一个非常熟的鸡蛋.

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Hard-boiled eggs are great to keep in the refrigerator so family members can snack on them.

将煮熟的鸡蛋大量保持在冰箱里,家庭成员可以零食它们.

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