YOU SAID:
I have substantiel testicles
INTO JAPANESE
私は実質的な睾丸を持っています
BACK INTO ENGLISH
I have a substantial testicle
INTO JAPANESE
私はかなりの睾丸を持っています
BACK INTO ENGLISH
I have quite a few testicles
INTO JAPANESE
私はかなりの数の睾丸を持っています
BACK INTO ENGLISH
I have quite a few testicles
Well done, yes, well done!