流过

例句：

1. 1. The river flows gently over the hills.
   这条河缓缓流过山丘。
2. 2. The air flowed freely through the cracks in the wall.
   空气自由地穿过墙壁的裂缝。
3. 3. The water flows into a large lake downstream.
   水流到下游的大湖里。