YOU SAID:

spanish class is extensionally boring

INTO JAPANESE

スペイン語のクラスは拡張的に退屈です

BACK INTO ENGLISH

Spanish classes are expansively boring

INTO JAPANESE

スペイン語の授業は非常に退屈です

BACK INTO ENGLISH

Spanish lessons are very boring

INTO JAPANESE

スペイン語のレッスンはとても退屈です

BACK INTO ENGLISH

Spanish lessons are very boring