老鼠单复数用英文怎么说

老鼠的单数形式是 "mouse," 而复数形式是 "mice."

来源："Mouse" 和 "mice" 来自于古英语中的 "muse."

英文例句及其中文翻译：

I saw a mouse in my kitchen. (我在厨房里看到了一只老鼠。)
The mice were scurrying about in the walls. (老鼠们在墙壁里穿梭。)
The scientist used mice in her experiments. (科学家在她的实验中使用了老鼠。)