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为此，需要克服哪些挑战?
wèicǐ ， xūyào kèfú něixiē tiǎozhàn ?
what challenges need to be overcome to achieve this?
可以使用哪些付款方式?
kěyǐ shǐyòng něixiē fùkuǎn fāngshì ?
which payment methods can I use?
应该注意哪些问题?
yīnggāi zhùyì něixiē wèntí ?
what should be paid attention to?
支持哪些操作系统?
zhī chí něixiē cāozuòxìtǒng ?
which operating systems are supported?
