noun, noun or participle which takes 'suru'
flowing east; eastward flow
Used for rivers, currents, or metaphorical flows moving eastward. Often appears in geographical or descriptive contexts.
この川は東流して太平洋に注ぐ。
This river flows east and empties into the Pacific Ocean.
東流する雲が空を覆った。
Clouds flowing east covered the sky.