flow、run、stream与pour这些动词均有“流动、涌出”之意。
flow : 侧重水继续不断地往前流，不关心其流量的大小和速度的快慢。
- Lava from the volcano was flowing down the hillside.
火山岩浆顺着山坡往下流。 - Many short rivers flow into the Pacific Ocean.
许多小河汇入太平洋。
run : 指液体向任何方向流动，暗示比flow快而有力。
- I can feel trickles of sweat running down my neck.
我可以感觉到津津汗水顺着脖子往下流淌。 - The walls were running with damp.
墙受潮出现了斑斑渍迹。
stream : 指水或其它液体从源头流出，不断地朝某一方向流动，可用作引申。
- There were tears streaming down his face.
泪水顺着他的脸滑落。 - One woman was carried from the scene of the accident with blood streaming from her head.
一名头部流血的妇女被从事故现场抬走了。 - I've got a terrible cold and my nose has been streaming all week.
我得了重感冒，整个星期都在流鼻涕。
pour : 通常指从高向低或从上向下的急剧流动。也可作引申用。
- The bus was pouring out thick black exhaust fumes.
那辆公共汽车排出大量浑浊的黑色废气。 - The government has been pouring money into inefficient state-owned industries, and the country can no longer afford it.
政府一直在向效益欠佳的国有企业注入大量资金，国家再也承受不了了。
