这是一只鸭子用英语怎么说

"This is a duck" in English.
The phrase "duck" as a term for the waterbird is of Old English origin, derived from the Proto-Germanic word *dukkōną, which in turn comes from Proto-Indo-European *dʰukʷ- (to dive).
Example sentences in English:
Look, a duck is swimming in the pond.
The duck is eating breadcrumbs from the hand of the little girl.
Example sentence translations in Chinese:
看，有一只鸭子在池塘里游泳。
这只鸭子正在吃小女孩手里的面包屑。