Ach на английском языке:

Oh, sure, I studied English in my school days. But it wasn't until two or three years ago that I really started taking it seriously.

Oh, hush!

Oh? Then, as I expected, I've been around longer than you. This year I'm 20-mumble years old. "What does that tell me?"

Oh my. However much it's just a P.E. class; if you don't face it in real earnest, then when it comes to a real fight it won't do you any good.

You're taking me for an idiot! "Taking you for an idiot? Oh, no! I'd never!"

...Hey...Hey, teacher! "Eh? Oh." "Are you really OK? Shouldn't you cancel the lesson?"

I was just admiring your roses. They're absolutely gorgeous. "Oh, I'm flattered. Thank you."

Ah, the trailing group has arrived. "Oh no. They caught up with us while we were resting."

Today, the milkman was buried. There were a lot of people, cause everybody in the village knew him. "Oh, is there a milkman in Linschoten?" "Well, no, not anymore!"

Didn't you get married!? "Oh, we split up. We broke our engagement."

Oh, if only we could be as shy and timid in our shameful actions as we are in our proper ones!

Hey! It's dangerous to run here. "Eh? ... A-a-Aaah!!" "Oh dear, what did I tell you?"

Eh? Have we run out of toner? Oh well, sorry, but can you go the staff-room and get some, Katou?

Oh, while I remember, it seems that that was a bug that occurs when you use the comment field's 'letter-spacing' tag which adjusts the tracking.

The trouble with "trouble" is that it's sometimes a verb, sometimes a noun, sometimes countable, sometimes not. Oh, well. Trouble troubles me little, and little troubles trouble me not at all.