Just now ah, when I went to 7-Eleven, I passed by some
neighbors' houses, and there was one of my cats! perched atop the
stone bench outside one of the houses! That cat went missing about
2 years ago and my mom had told me she saw the cat on some
occasions near our house, but today was the first time I'd seen her
for myself!
And she recognizes me! She went "mew mew mew" and walked towards
me, and she allowed me to carry her and even followed me for a
short while when I walked away!
And on my way back, I went and patted her again, and this time the
neighbor came out from her house. The neighbor says this is her
cat, and now it even has a new name - Xiao Mi! 
I told the neighbor I used to keep this cat in my backyard, and the
neighbor said I could come and visit it anytime. 