YOU SAID:
buckle your seatbelts
INTO JAPANESE
あなたのシートベルトを締めます
BACK INTO ENGLISH
Tighten your seat belt
INTO JAPANESE
シートベルトを締めます
BACK INTO ENGLISH
Tighten the seat belt
INTO JAPANESE
シートベルトを締めます
BACK INTO ENGLISH
Tighten the seat belt
That didn't even make that much sense in English.