moo-cow

例句：

1. 1. The farmer milks his cows every morning.
   农夫每天早上挤牛奶。
2. 2. The cows graze in the meadow.
   牛群在草地上吃草。
3. 3. The cows are a symbol of hard work and dedication.
   奶牛象征着辛勤工作和奉献精神。