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1·Riots are almost unheard of in Japan.

暴乱在日本几乎是闻所未闻的。《柯林斯英汉双解大词典》

2·Pay cuts, unheard of during times of growth, may even be imposed.

在经济增长时期闻所未闻的减薪，甚至都可能被强制执行。

3·It's almost unheard of for a child to show up hungry to school.

孩子饿着肚子上学几乎是闻所未闻的。

4·After all, true vitamin deficiencies are practically unheard of in industrialized countries.

毕竟，真正的维生素缺乏在工业化国家几乎闻所未闻。

5·Practically unheard of a generation ago, the discounts have become a routine part of many businesses—as common as color televisions in motel rooms and free coffee on airliners.

上一代人几乎闻所未闻的打折已经成为许多企业的惯用手段——就像汽车旅馆房间里的彩电和航班上的免费咖啡一样普遍。

6·Hostile takeovers are unheard of.

不良收购案闻所未闻。

7·That would hardly be unheard of.

这不会是闻所未闻的。

8·This is not unheard of in Guinea.

这种事在几内亚并非罕见。

9·Such changes are unheard of in Albany.

诸如此类的改变在纽约州可谓前所未闻。

10·Unheard of for all I know.

我根本没听说过。

前所未闻的

1·This kind of growth is unheard of, particularly for a startup, in the packaged-goods business-and rare in the tech world.

这样的增长速度前所未闻，尤其是对于包装商品行业的一家初创公司来说——即使在科技行业，这也非常罕见。