第1个回答 2007-10-28
how many countries are there in the world?
多正点的例句啊
第2个回答 2007-10-28
Who knows how many countries there are in the world.
第3个回答 2007-10-28
世界上共有224个国家和地区，其中国家为193个，地区为31个。
开始回答你的问题：
How many countries are there in the world?
There are one hundred and ninety three.本回答被提问者采纳