I don't say I'm sad who can see it

I don't say I'm sad who can see it
I don't say I'm sad who can see it

I don't say I'm sad who can see it
句子有点毛病吧.
who can see my sad that i can't say .
谁能明白我说不出的悲伤.

谁能明白我说不出的伤心。

我不说的话 你们谁知道我伤心

我没有说我很伤心呀，你们谁能看出来（我很伤心）