氷(こおり) kooriが ga薄(うす)い() usuiから kara君(きみ)の() kimino体(たい)重(じゅう) taijuuで deは wa無(む)理(り) muriだ da。 The ice is too thin — it can't handle your weight. Literal Ice [subject-が] thin [because-から] your weight [by-では] impossible [copula-だ]. 薄いから gives the reason. 体重では無理だ means 'it's impossible with your weight' — では marks the condition/circumstance. 無理 is 'impossible, unreasonable.' naturesafety and danger~から (because)
氷(こおり) kooriが ga薄(うす)い() usuiから kara君(きみ)の() kimino体(たい)重(じゅう) taijuuで deは wa無(む)理(り) muriだ da。 The ice is too thin — it can't handle your weight. Literal Ice [subject-が] thin [because-から] your weight [by-では] impossible [copula-だ]. 薄いから gives the reason. 体重では無理だ means 'it's impossible with your weight' — では marks the condition/circumstance. 無理 is 'impossible, unreasonable.' naturesafety and danger~から (because)