YOU SAID:

the astrophysicist threw his guitar at the window

INTO JAPANESE

天体物理学者がギターを窓に投げた

BACK INTO ENGLISH

An astrophysicist threw his guitar into the window.

INTO JAPANESE

天体物理学者がギターを窓に投げ込んだ。

BACK INTO ENGLISH

An astrophysicist threw his guitar into the window.