I don't dare to do it.

楼主是对的.但我不知道为何楼上这么肯定说是：我不怕这么做.
应该是我不敢(不愿)这样做.
请看下面三句例子：
1) I know that it is possible to fix it,but I do not dare to do it myself,neither I send it to the AIWA dealer (I am too lazy).
2) He is severly punished so that other common men do not dare to do it again.
3) Many times,America has threatened to take action or to impose sanctions on China,but they do not dare to do it because the investment by the American industries and American multinationals in China is such that if they are going to do it,there will be a revolt within America itself.