They changed their tune.

他们改变了论调。

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Swedish teaching unions initially hated the whole idea of free schools-but once they saw that their members liked working in them, says Mr Hultin, they changed their tune.

Hultin先生说，瑞典教学联盟开始痛恨自由学校的整个想法，但是他们看到他们的成员喜欢在自由学校工作后也改变了态度。

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He says skeptics have changed their tune as evidence started stacking up against them. A decade ago, they denied global warming even existed.

他说随着越来越多的证据与他们的观点相悖，这些怀疑论者在改变他们的腔调。十年前，他们甚至拒绝全球变暖的存在。

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Swedish teaching unions initially hated the whole idea of free schools but once they saw that their members liked working in them, says Mr Hultin, they changed their tune.

ECONOMIST: Tory plans for schools: Making them happen | The

The original had already threatened to impose tariffs on energy-intensive imports from the likes of China, but only if they had not changed their tune by 2020.

ECONOMIST: Pollution law