kè lā tōng / shì / dà lù dì ké / zhōng / jīng guò / cháng qī / yǎn huà / ér / bǎo chí / wěn dìng / de / gǔ lǎo / qū yù

克拉通是大陆地壳中经过长期演化而保持稳定的古老区域。

A craton is an ancient region of continental crust that has remained stable through long-term geological evolution.