这是一只公鸡用英文怎么说

"这是一只公鸡" 用英语说是 "This is a rooster."

Rooster 来源于古英语中的 "rocc" 或 "rauc"，意为 "公鸡"。

例句:

The rooster crows at dawn. (公鸡在黎明时鸣叫。)
The farmer keeps a few roosters in the coop. (农民在鸡舍里养了几只公鸡。)
The rooster is a symbol of mascupnity and courage. (公鸡象征着男子气概和勇气。)