Alright G is a bit of a long one. Let’s see what we have here.
Before I go ahead, let’s see what Shannon came up with in her reply:
We spend 2 to 3 months in each department getting training in various department.
そして：conj. and then
２年間: A period of two years (the super rotate method if I understand correctly)
I’m familiar with うち meaning home but here I don’t see where it fits in, let’s check if うち has other meanings which would be more apropos.
Ah ha! It can also mean within, it all works now. He’s saying:
Within a period of two years…
Let’s do the second part now, the longer part.
それぞれ: adv. noun each, respectively;
Note: If it’s an adverb, how can it be a noun?
自分: reflexive pronoun;
科【しな、カ】department, course, faculty;
When I type か for 科, nothing comes up. I have to type しな. In my dictionary, it lists the kun-yomi (しな) as meaning: article, thing, goods; but here it’s clearly the on-yomi which we need to talk about department, course, section. How come I don’t get anything when I type in か？I assumed it was the on-yomi was to be used as a constituent of a word.
Anyhow, here’s what I understand:
He’s saying that within two years he’ll have decided on a department (presumably to work in).
P.S.: there’s still G left but I’m too tired now.