求英语论据：which is more difficult,to learn or to do?

To do is more difficult for four reasons:
1.We can learn many English words but never do we practice this language with others.
2.The second reason is that we are used to speaking Chinese,and it's our native language.
3.The third reason is that our language has no similarities with the foreign language.
4.Maybe people who can speak Spanish,French,Italian and another Romance Language do English easily,because they use letters but not Chinese characters.