名词 wellhead:

1. the source of water for a well

2. a structure built over a well

welladv.很好地；相当地int.好吧；啊adj.健康的；良好的；适宜的n.井；源泉；楼梯井v.涌出Wellmann.韦尔曼

1. Our country is well watered by rivers and brooks.
   我国因河溪多而水源充足。
2. Besides offering a source of well water, aquifers also combine with precipitation to feed surface watercourses.
   处理进水提供的水源外，蓄水层也可以和降雨一起补充地表河道。
3. The stream can never rise above the spring head.
   河水高不过源头。
4. Who wants clear water, let him go to the fountain - head.
   喝清水，去源头。