what Catalin said +

as in exchange

I just work 3 days in the company (needs rephrasing, do you work 3 days a week? have you been working for 3 days? OK given that you're "the junior" I assumed that you've been working for 3 days but still I'm a junior too but I've been working for a few months)

and I bring my products to Ronggui today. (ok what's Ronggui? xD  if it's this place: http://en.wikipedia.org/wiki/Ronggui_Subdistrict then you could have introduced where you work a little bit too)

I'm happy that I (this is OK)

I corrected a notebook entry from of a girl (or a girl's notebook entry)

my commentary was badly written. (in this context it's better to use "comment" instead; see the difference between http://oxforddictionaries.com/definition/english/commentary?q=commentary and http://oxforddictionaries.com/definition/english/comment?q=comment)

Numbers

Suddenly I realized that any executable program is a very long number itself.
It seemed strange, but I've never thought in that way. And now I think it's amusing.
An executable machine code is a sequence of nulls (we usually say ones and zeroes, also a null in programming is an object and not a number) and ones 00000101....
It means that any program could be represented in decimal: (this would be a really bad representation, a hex representation is easier to read and to interpret if you're a really smart chap)

When we take a photo of something, we just write a very long number. When we feed this number to a program later, it will interpret the number to a photo on the screen.

Or when we power on our cellphone, it reads in order different numbers from flash memory and the result is - android with a lots of applications.
And so on.
Maybe everything around us are only numbers itselfthemselves? (I'm not really sure whether to treat everything as singular or plural)

on a side note you can actually read the machine code if you have the instruction set of your target, this is usually a list of all instructions that the target can execute in assembly code, it's really simple once you get the concept, you can even program in binary!

Longing

There are days, when I miss something and I don't know what it is.. That's a really annoying feeling. I can't name a person or a thing, but I know that I miss something or somebody.. This almost gives me physical pain and I can't relieve it even with food(:P) These days (lately?) I forget that I am an optimist.. I just wanna sleep and stop feeling this way..
Does anyone have the same feeling  (has anyone had the same feeling before) or am I just weird? Sorry for that negative note but, I am so sad today:(