Japanese phrase
___は機内に持ち込めますか？ ___ wa ki nai ni mo chi ko me ma su ka
Meaning
Is ___ allowed in the cabin?
When to use it
Asks if an item is permitted inside the airplane cabin. It is a courteous way to confirm carry-on restrictions before boarding.
Example dialogue
この水筒は機内に持ち込めますか？ ko no sui tō wa ki nai ni mo chi ko me ma su ka
Is this bottle allowed in the cabin?
空なら大丈夫です。 kara na ra dai jō bu de su
It is fine if it is empty.