Editing Openai/6969ab01-2658-800b-b455-04cca7ff3acc (section)

=== Assistant: Good example. ===
Good example. Now let’s be precise and a little ruthless with nuance.

しまった！忘れてた！
Emotionally, this is a small, sudden self-realization, not a catastrophe. The speaker notices the mistake after the fact. There’s no implied danger yet — just “I screwed up.”

Your Indonesian options:
* Celaka! aku lupa ngerjain PR! This sounds too heavy. Celaka implies something closer to an accident or serious misfortune. Forgetting homework usually doesn’t rise to that level unless the story context is extreme (expulsion, public humiliation, life ruined, etc.).
* Gawat! aku lupa ngerjain PR! This is borderline acceptable, but it already assumes consequences. It works if the character is panicking because the teacher is standing right there.

More natural, everyday equivalents:
* Waduh! aku lupa ngerjain PR! ← closest emotional match
* Aduh! lupa ngerjain PR!
* Ah—aku lupa PR!
* Sial, aku lupa PR! (adds self-blame)

If we strip it to emotional mechanics:
* しまった！ → instant “oops” realization
* 忘れてた！ → factual confirmation of the mistake

A very clean Indonesian rendering would be:

: 

Or, if you want slightly more urgency:

: 

So yes, your sentence is understandable, but celaka overshoots the tone. It turns a school mishap into a near-death experience.
Good translations don’t just transmit meaning — they conserve emotional mass.