straight flow

例句：

1. 1. The river runs straight through the town.
   这条河穿过城镇直通大海。
2. 2. The oil pipeline is designed to carry oil directly from the refinery.
   这条输油管道设计用来直接从炼油厂输送石油。
3. 3. The rainwater flows straight into the storm drain.
   雨水直接流入排水沟。