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1·They do not own the land in perpetuity.

他们并不永久拥有这片土地。《牛津词典》

2·The U.S. government gave the land to the tribe in perpetuity.

美国政府将这块土地永久性划拨给该部族。《柯林斯英汉双解大词典》

3·We do not sterilize land in perpetuity.

对土地没有永久性损害。

4·I never before saw a smile caught like that, in perpetuity.

我从未见过谁的笑脸僵成那幅模样。

5·The site of the memorial is granted in perpetuity to Canada.

纪念馆址已选定在加拿大作为永久的纪念。

6·Major gifts to the Permanent Fund provide program support in perpetuity.

对永久基金的捐献则是提供计划永久性地支持。

7·You are stuck with new employees in perpetuity, whether they're good or not.

因为你将永远纠结于新员工，无论他们是有能力还是没能力。

8·So we have sufficient reason to carry forward and further develop it in perpetuity.

我们有理由永远把它继承并发扬光大。

9·The majority of the trademarks Warnaco uses are either owned or licensed in perpetuity.

大部分商标为集团自有或集团永久持有经营许可权。

10·If the payments are made over an infinite period of time the annuity is called a perpetuity.

假如支付期是无限的，称为永久年金。

(1)in perpetuity永远地