Head teachers have wide discretion in the hiring and firing of teachers and are free to pay by results as they think fit.

在雇用和解聘教师方面，校长拥有完全的自由裁量权，并按照他们认为合适的结果去自由付工资。

youdao

Because of this, we are asking you either to repeat the campaign next year for free, or we only pay 50% of the fee for this year.

正因为如此，我们要求你要么明年免费帮我们再次举行这个活动，要么我们今年只支付50%的费用。

youdao

Museums should require regular visitors to pay a fee, but provide free tickets as prizes for high achieving students who can appreciate them more.

博物馆应该要求经常参观的人付费，但为成绩优秀的学生提供免费的门票作为奖励，让他们可以更多地欣赏博物馆。

youdao

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

ve something like, recent study shows of 30,000 Canadians have gone for other countries for health treatments, even though they got it free of charge in Canada, ve get to pay for it somewhere else, and they go.

有大约，You’,最近调查显示是3万加拿大人,去别的国家,寻求医疗，即使在加拿大有免费的，他们在别处得付费，and，they’,他们还是选择出去。

斯坦福公开课 - 经济学课程节选

If not, you're free to pay to have a third party do it.

FORBES: In The Future, Tax Filing Will Be Easy

This account allows you to save money on a pre-tax basis, and then to use it tax free to pay for qualified out-of-pocket medical expenses.

FORBES: 5 Things You Need to Know Before Buying Health Insurance

In June, the PBOC announced that banks will be allowed to offer loans at interest rates up to 20 percent below the benchmark rate and be free to pay savers a rate up to 10 percent above the ceiling rate.

FORBES: China's Challenge: Balancing the State and Market