YOU SAID:

The helicopter had to quit early because of mechanical trouble

INTO JAPANESE

ヘリコプターは機械的なトラブルのために早くやめなければなりませんでした

BACK INTO ENGLISH

The helicopter had to stop early due to mechanical trouble

INTO JAPANESE

ヘリコプターは機械的なトラブルのために早期に停止しなければなりませんでした

BACK INTO ENGLISH

The helicopter had to stop early due to mechanical trouble