chū / guó / qián / zuì / hǎo / chá / xún / yī / xià / guó / jì / cháng / tú / huà / fèi / de / shōu / fèi / biāo / zhǔn

出国前最好查询一下国际长途话费的收费标准。

Before going abroad, it's best to check the international long-distance call fee standards.