Traditional Culture Encyclopedia - Photography and portraiture - The source of the mother river is a small pool of water, which, after gathering, becomes a surging river.

The source of the mother river is a small pool of water, which, after gathering, becomes a surging river.

The second longest river in China

Bayanhar

Kariku

Hekou Town, Inner Mongolia

Ningxia plain

Hetao plain

Inject into Bohai sea

2 Biology

Depend on sb/sth for survival.

Cell wall cell membrane nucleus