例句：
1. 今天是星期天，公园里有成千万的游人。
It is Sundany. There are hundreds and hundreds of people in the park.
2. 今天是星期天。
It's Sunday today.
3. 是的，今天是星期天，你应该知道，但你永远不会提到这一切！
Yes, it was Sunday and you should have known but you would never mention all that!
4. 今天是星期天，我又拿起了我的漂亮布娃娃。那是两年前我过生日时，妈妈给我买的。
Today is Sunday. I took out the nice doll again. Two years ago, my mother bought her for me on my birthday.
5. 要是今天是星期天就好了。
If only it were Sunday today.
6. 而且今天是星期天啊！我要上去制止他们！
And today's Sunday! I'm going up there to set them straight.