tā men jué dìng zài gāo pō shàng zhā yíng，yīn wèi nà lǐ shì yě kāi kuò，kě yǐ fǔ kàn zhěng piàn shān gǔ。

他们决定在高坡上扎营，因为那里视野开阔，可以俯瞰整片山谷。

They decided to camp on the high slope because the open view there allowed them to overlook the entire valley.