Japanese English (1)

Almost of Japanese have English complex.
It is said thier less confident led their poorness of speaking English.
But actually, there are other problems left in terms of skill.
It is thier pronunciation.

It is hard to distinguish for Japanese, [r] and [l],
[s] and [th], [z] and[th"] ,[h] and [f] , [h] and [v].
For them, when they are less cautious hearing,
they lesten these pronunciation as indifferent.
Consequently, when they speak, make same mistake.

It is for me as a Japanese, my enforcement point to improvement English now.