for efficient machine milking

例句：

1. 1. I will go to the store for milk tomorrow.
   我明天要去商店买牛奶。
2. 2. The book is available for sale at the library.
   这本书在图书馆有售。
3. 3. She decided to leave for Paris without telling anyone.
   她决定不告诉任何人就离开去巴黎。