Politicians tend to overestimate how much public opinion, once formed, can be moved by tactics and strategies.

政客们往往高估战术和策略对固有民意的影响。

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Let us suppose that such is the case, that somewhere in the world each of us has a partner who once formed part of our body.

让我们假设这样一种情况，在世界的某一地方，每一个人都有一个曾经是自己身体一部分的伙伴。

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These have always'been believed to have once formed part of Atlantis although it appears that little further excavations or explorations have ever taken place on this site.

这些总是被认为曾经形成了亚特兰提斯的一部份，虽然似乎曾经在这个地方有更进一步的挖掘或探险。

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New protests groups would be formed in a few years when farmers once again faced hard times.

VOA: special.2010.04.15

And this same technology makes it possible for a group, once formed, to organize, plan, and take action.

FORBES: The Movement is the Medium

The three provinces of Pattani, Yala and Narathiwat once formed the heart of an independent Malay Muslim sultanate.

ECONOMIST: But at last the government is listening

The engine, which can be found on the Iron Mountain walking trail, is one of the many structural remains that once formed the complex network of operations in this area.

UNESCO: UK National Commission for UNESCO - Blaenavon receives Welsh government support to protect its World Heritage