cow-day

例句：

1. 1.We decided to spend our cow-day at the farm, enjoying the fresh air and the beautiful scenery.
   我们决定在农场度过我们的奶牛日，享受新鲜空气和美丽景色。
2. 2. The farmer's wife had a cow-day at the farm, helping with the daily chores.
   农民的妻子在农场度过了奶牛日，帮忙做日常家务。
3. 3.During the cow-day, we helped the farmer milk the cows and feed them.
   在奶牛日期间，我们帮助农民挤牛奶并喂养牛。