Washing the Wastewater Problem

10698 http://d33hzbufl2gyhz.cloudfront.net/dialogs/10698/thumb_17915_20120928133806.jpg

The Blue Plains wastewater treatment facility promotes its technology on making filthy water clean.
Duration - 01:46
2779 points | Advanced
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Comments

    Archived Comments

    • linuxcool posted on May 24, 2011 6:48:36 AM

      I'm trying to pronouce like a native speaker.

    • Nguyen Hoang Quan posted on August 25, 2010 12:48:10 AM

      I tried my best but I get B+

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