因此，在1235年，成吉思汗的儿子，窝阔台，开始在鄂尔浑河附近的一块开阔平原建造城市。

So in 1235, Genghis's son, Ogodei, began building a city near the Orkhon River, on the wide-open plains.

youdao

偶蹄目牛科大角斑羚属2种容易驯化的牛形羚的统称，成群栖息在非洲中部和南部的开阔平原或有少量树木的地区。

Either of two species of easily tamed, oxlike antelope (genus Taurotragus) found in herds on the plains or in lightly wooded areas of central and southern Africa.

youdao

河流引你而下之时，你会经过开阔的平原和茂密的丛林山谷。

As the river carries you along, you'll pass through open plains and dense jungle valleys.

youdao