河鱼腹疾: (腹泻) have loose bowels; suffer from diarrhea; stomach ailment
北太平洋溯河鱼类养护公约: convention for the conservation of anadromous stocks in the north pacific ocean
阴: Ⅰ名词1.(中国古代哲学认为宇宙中通贯物质和人事的两大对立面之一) (in chinese philosophy, medicine, etc.) yin, the feminine or negative principle in nature2.(指太阴, 即月亮) the moon 短语和例子阴历 lunar calendar3.(不见阳光的地方) shady pla