The lyrics of Feng Feifei's what is it(feng fei fei dao di shi shi me ge ci )

I can't figure out what this is

There is always a lot of that helpless in my heart

It seems that I have you in my heart

If I think about you, it's kind of cold

Who's going to tell me what this is

There is always a lot of hesitation in my heart

It doesn't seem enough to say that this is love

If I don't love you, I can't say it

I really don't understand what this is

I can only say that I have too many concerns

So I can't show my love easily

My heart will be free and easy

Chinese PinYin : Feng Fei Fei Dao Di Shi Shi Me Ge Ci