The answer to the first question is "not for ever".

对于第一个问题，答案是“不是长久之计”。

youdao

Meanwhile, the West's financial travails are not for ever.

然而与此同时，西方国家的金融阵痛也不是永久的。

youdao

I can scrape along on a reduced income for a short time, but not for ever.

短时间内，我可以靠减少的收入勉勉强强度日，但不能维持长久。

youdao

He could not think of loving any other woman, and could not imagine Athnaise ever caring for him.

VOA: special.2009.06.27

Oh, Son. Did you not ever go on your knees and pray for deliverance from all your sins and scoundrel's acts? Lost boy, depart.

噢，儿子！你怎么不跪下，为了对你的所有,罪恶和卑鄙行为的判决而祈祷，迷失的孩子，走吧。

耶鲁公开课 - 1945年后的美国小说课程节选

So, Newton did not ever tell you what the expression for force is in a given context.

牛顿从来也没有告诉过你,在这种情况下力的表达式

耶鲁公开课 - 基础物理课程节选

Even in the few countries that have eased their rules, the new one stipulates two successive terms and that (though maybe not for ever) is your lot.

ECONOMIST: Two terms and you��re out

Israel's acceptance of the 1993 Oslo peace agreement, they argue, was at least partly due to Yitzhak Rabin's realisation that Israel could not for ever ensure that its enemies were denied nuclear weapons.

ECONOMIST: Israel

Vague promises that this will not last for ever are not enough.

ECONOMIST: Britain��s Celtic choice