Payment options are available in cash, bank transfer and credit card, and all details will be given after the first free lesson.

现金支付，银行转账和信用卡，首节免费课后，您将会得到相关细节。

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This promotional poster for a self defense school is quite creative: take one of the teeth and call for a free lesson at the self defense school.

这个防身术学校的宣传海报很有创意：拿掉一颗牙齿，然后打电话给他们，获得一次免费的防身术课程。

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This lesson goes through to the Hume on free will.

今天的课还将讨论休谟关于自由意志的观点。

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The staggering amount of money being spent on this presidential campaign is a free lesson for us all.

FORBES: An Unexpected Way to Become the Top Choice

After multiple hair-tearing sessions with incorrectly feeding string, I finally took the trimmer into the dealer, where I got a free lesson on string replacement.

FORBES: How to Cope With Useless User Manuals

It starts early, and there's always a free dance lesson at the beginning.

NPR: Bhangra's DJ Rekha Takes the Dance Floor