背 が 伸びる
背伸 Kanji
「背が伸びて入らないわよね」「そう、断じて太ったわけではない!」「成長したという便利な言葉は我々の切り札」 "We've got taller so they don't fit." "Right, it's certainly not that we've got fat!" "The useful phrase 'grown up' is our trump card."