Obviously——used to mean that a fact can easily be noticed or understood.
Apparently——①used to say that you have heard that something is true, although you are not completely sure about it ② according to the way someone looks or a situation appears, although you cannot be sure.
Evidently——(slightly formal)used to say that something is true because you can see that it is true.
从上面可以看出，Obviously是依然是最地道的“明显”，跟形容词形式意思一样，evidently虽然也是这个意思，但《剑桥高级学习者词典》指出此词略微正式，与obvious相比，’it is usually better to choose the word obvious’，因此副词也比较正式。
英语口语培训最麻烦的要数apparently，已经跟apparent有较大区别了，里面包含着’you cannot be sure’的意思，所以中文的正确意思应该是“看似，据说”，这一点就连我认为国内最棒的英汉词典——陆谷孙老先生编的《英汉大辞典》里也找不到的。比如说剑3中Test 3 阅读Passage 3 讲环境和情绪的文章里有一句话，However, this apparently does not just depend on the temperature. 应该理解为“不过看来这不仅仅取决于气温”。还有同样是剑3 Test 2听力中的Section 3 讲员工选拔中有一句话，The idea is actually quite old. Apparently they were used by the ancient Chinese for picking out clerks and civil servants. Apprently应该翻译成“据说”。