Free plastic bags can' t be used at shops and supermarkets in China, and people have to pay for plastic bags.

在中国，商店和超市不能使用免费的塑料袋，人们必须为塑料袋付费。

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The question is how much are people willing to pay for news that they have gotten used to receiving for free?

VOA: special.2009.04.20

So, when the mortgage ends, you're just clear and free; you don't have to pay anything--nothing comes at the end.

因此,抵押贷款正好在到期时全部还清,贷款期末你不再偿还任何金额

耶鲁公开课 - 金融市场课程节选

Sometimes they're free. Sometimes you can pay for them.

有时是免费的。有时你要付钱看。

看表演很好 - SpeakingMax英语口语达人

She said anyone with queries about the national minimum wage could call a free pay and work rights helpline.

BBC: 'Forced labour' of migrants in UK food industry

So, when it comes to the living wage, politicians are really looking for a free lunch: or rather, a free pay rise.

BBC: Living wage: Is there such a thing as a free pay rise?

But a free pay rise - for the government and for workers - is unlikely to be available for all of them.

BBC: Living wage: Is there such a thing as a free pay rise?