it's hard..

it's hard not too cry in front of them..
coz i just so so and so don't want to seperate..
but i can't cry,really can't..i promised them i won't..
as a big sisiter, i muz take good care of them,i must make sure that they are happy..
I don't noe it's my duty,responsibility or juz love..
six years passed,it's fast,indeed fast..