I have three cats.
我有三只猫。
She bought three books.
她买了三本书。
They have three children.
他们有三个孩子。
We need three tickets.
我们需要三张票。
He found three errors.
他发现了三个错误。
There are three cars.
那里有三辆车。
The dog has three toys.
那只狗有三个玩具。
John met three friends.
约翰见了三个朋友。
She cooked three meals.
她做了三顿饭。
I saw three movies.
我看了三部电影。
three times a week
一周三次
three quarters
四分之三
three parts
四分之三
three strikes
三击措施
rule of three
三分律；比例律；比例法
复数: threes;
