YOU SAID:
boing boy is very springy
INTO JAPANESE
ボインボイン少年は非常に弾力性があります。
BACK INTO ENGLISH
Boing Boing boy is very resilient.
INTO JAPANESE
ピョーン ピョーン少年は非常に弾力性です。
BACK INTO ENGLISH
Boing Boing boy is very resilient.
That didn't even make that much sense in English.