n. the cardinal number that is the sum of nineteen and one
s. denoting a quantity consisting of 20 items or units
num. 二十, 二十个
1. I have twenty apples in my basket.
我篮子里有二十个苹果。
2. She is twenty years old this year.
她今年二十岁。
3. There are twenty students in our class.
我们班有二十名学生。