packages/flutter_localizations/lib/src/l10n/widgets_ja.arb

{
  "reorderItemToStart": "先頭に移動",
  "reorderItemToEnd": "最後に移動",
  "reorderItemUp": "上に移動",
  "reorderItemDown": "下に移動",
  "reorderItemLeft": "左に移動",
  "reorderItemRight": "右に移動"
}