domestic duck

常見例句

A wild duck(Anas platyrhynchos)of which the male has a green head and neck. Most domestic ducks descend from the mallard.
綠頭鴨一種野鴨（綠頭鴨），其雄鳥具有綠色的頭和頸。大部分馴化了的家鴨都是綠頭鴨的後裔。
The mallards were once kept to hybrid many forms of domestic ducks, such as Peking duck in China, duck head duck in Italy, and green head duck in Japan.
綠頭鴨曾被人利用飼育馴養(yǎng)而改良成各種的家鴨品種如中國的北京鴨、意大利的黑頭鴨及日本的青頭鴨等。
Liang Tan River pollution is mainly farming wastewater, domestic sewage and so on, 40% of them is duck droppings pollution, the integrated control of beach River focused on duck pollution .
梁灘河汙染主要爲(wèi)?zhàn)B殖汙水、生活汙水等，而其中鴨糞隨意排放引起的汙染佔(zhàn)40%。