第1个回答 2011-08-31
If you don't go off to see the world , you'll never know how wonderful the world is !
其实前三个答案都是对的,只是看你怎么选择而已。
第2个回答 2011-08-31
If you don't go off to see the world, you will never know how exciting the world is!
第3个回答 2011-08-31
You‘ll never know how wonderful the outside world is if you don't go out.