crazy about 非常喜欢;

你可以说You are crazy about 一个人，一个东西，一个地方！

You can be crazy about anything! I am crazy about Justin Bieber! He is so cute! 我非常喜欢 Justin Bieber! 他太可爱了！

I am crazy about coffee! I drink at least 3 cups a day!我非常喜欢喝咖啡！我每天至少喝三杯咖啡！

I am crazy about China! I can't wait to visit again!我非常喜欢中国！我等不及再去中国！

fall for 爱上一个人;

I think I am falling for Tim. He is so romantic!我觉得我开始爱上了Tim. 哇，他太浪漫了......