吴玛悧
树梅坑溪早餐会 #009：测水质讲解
新北，台湾
| 2011 | 版权：吴玛悧
李峑毅先生正在讲解水质检测的方法。
WU Mali
Breakfast at Plum Tree Creek (#009)
New Taipei, Taiwan
| 2011 | Copyright: Wu Mali
Mr. Li is explaining the methods of water testing.
