人们认为这个项目是最困难的，目前没有人知道要花多少钱。

The project is considered to be the most difficult, and now nobody knows how much will be spent on it.

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我们没有练习过的一个问题是：你期望拿多少钱？

One question we did not practice was "How much money are you expecting?"

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但是，如果他们是提前一次付清的话，他们只能到年底看到帐单时才会意识到自己浪费了多少钱，而那时支付者已经没有锻炼的习惯了。

But if they pay in advance it isn't until they get the renewal bill at the end of the year that they realize how much money they've 'wasted' and by then they are out of the habit of exercising.

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