The valley declined gently to a fertile plain.

山谷缓缓地斜向一处肥沃的平原。

youdao

The Central Mountain Range slopes gently to a broad and fertile plain in the west.

中央山脉纵列于中央偏东，缓降于宽阔肥沃的西部平原。

youdao

Chinese modern prose just like a fertile plain plays a very important role in the growth of the high school students.

中国新诗这块沃野对于高中生个体的成长有着至关重要的作用。

youdao

There are sycamores, elms, maples, poplars on a fertile flood plain along the river.

CNN: When autumn leaves fall

The worst-affected areas are the fertile Hauran plain, south of Damascus, and the wheat-belt east of the Euphrates river.

ECONOMIST: Syria

Lushan, where the quake struck, is home to 1.5 million people where the fertile Sichuan plain meets foothills that eventually rise to the Tibetan plateau.

WSJ: China's Sichuan Province Hit by Strong Earthquake