河流两旁是一片广阔的平原。

héliú liǎngpáng shì yīpiàn guǎngkuò de píngyuán.

The riverbanks are a vast plain.

这个地区主要是农业平原。

zhège dìqū zhǔyào shì nóngyè píngyuán.

This region is mainly an agricultural plain.

平原上的庄稼正在生长。

píngyuán shàng de zhuāngjià zhèngzài shēngzhǎng.

Crops on the plain are growing.