挤奶器

例句：

1. 1. The farmer uses a milking machine to collect the milk from cows.
   农民使用挤奶机从奶牛中收集牛奶。
2. 2. The milking machine is essential for dairy farms to produce high-quality milk.
   挤奶机对于乳制品农场来说，是生产高质量牛奶所必需的。
3. 3. The milking machine has made it easier for farmers to collect milk from their cows.
   挤奶机让农民更容易从他们的奶牛中收集牛奶。