トム tomuが ga浅(あさ)瀬(せ) asaseを oぽちゃぽちゃ pochapochaと to歩(ある)い()て() aruite行(い)っ()た() itta。 Tom went splashing his way across the shallows. natureを (path of motion)adverbial と (after mimetics)~ていく (motion away from speaker)ぽちゃぽちゃ (splashing)