They participate in media through social and digital channels, in ways they never have before.

和以前不同的是，他们通过社交和数字渠道参与到媒体传播中。

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Native speakers can distinguish between grammatical and ungrammatical sentences even when they have never heard particular combinations before.

母语使用者可以分辨符合语法规则和不符合语法规则的句子，即使他们以前从没有听过这些特定的词语组合。

《柯林斯英汉双解大词典》

Because young children can make sentences they have never heard before, Chomsky suggested that human infants are born with the ability to learn language.

由于小孩子可以造出他们从未听过的句子，乔姆斯基认为人类婴儿天生就有学习语言的能力。

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Jacques Rogge says many Canadians have told him that having the Olympics in Vancouver has united the country like they have never seen before.

VOA: standard.2010.03.01

Branches of the government are intervening where they never have before.

FORBES: The smother of invention

The characters brought to the fore with the reboot will be interacting in ways they never have before in the DC universe, said DC Editor-in-Chief Bob Harras.

CNN: DC Comics goes for No. 1, fans conflicted

With digital distribution options available, candidates and campaigns can leverage the content they create (i.e. campaign blogs, web videos, editorial, etc.) as well as favorable earned media in a way they never have before.

FORBES: For Politicians, Some Lessons From Brand Marketing