There are 32 cows in a field. Half of them are eating. How many cows are NOT eating？
🌷 译句：地里有32头牛，其中一半在吃草，有多少头牛没有在吃草？ （答案附文末）
🌷 cow /kaʊ/ n. 奶牛，母牛；vt. 威胁，恐吓
[惯用语]：
dairy cow 奶牛
cash cow 摇钱树
milch cow 摇钱树，财源，乳牛
Holy cow ！ [俚语] 哎呀！我的天啊！
[例句]：
• Cows were domesticated to provide us with milk.
人们饲养奶牛来为我们提供牛奶。
• Cows were domesticated to provide us with milk.
人们饲养奶牛来为我们提供牛奶。
🌷field /fild/ n. 田地, 牧场，场地, 领域
[惯用语]：
in the field of 在…方面，在…领域
research field 研究领域
on the field 在战场上；在操场上；在田野
track and field 田径；田径赛
field survey 实地调查；实地考察
[例句]：
• He booted the ball across the field.
他把球踢到场地的另一头。
• Confucius, a pioneer in the field of education.
孔子，一位教育界的先驱。
• A field trip? I love field trips. Where are we going?
校外教学？我爱校外教学！我们要去哪里？
🌷 答案：16
