あの子、またおねしょしちゃった。今夜はオムツさせないとね。
She wet her bed again. I need to put a diaper on her tonight.

 ママ、僕昨日おねしょしなかったよ。
Mommy, I didn't wet my bed last night.

 よし! 本当に偉かったわね!
Good [All right]! I'm so proud of you!

 あの子、夜トイレに行かないのよ。彼女、怖いんだって。
She won't go to the bathroom at night. She says she's scared.

 だからけっきょくおねしょしちゃうのね。
That's why she ends up wetting her bed.