YOU SAID:

Japanese is like Chinese but not tonal.

INTO JAPANESE

日本語は中国語に似ていますが、音調ではありません。

BACK INTO ENGLISH

Japanese is similar to Chinese, but not in tone.

INTO JAPANESE

日本語は中国語に似ていますが、口調は違います。

BACK INTO ENGLISH

Japanese is similar to Chinese, but the tone is different.

INTO JAPANESE

日本語は中国語に似ていますが、音色は異なります。

BACK INTO ENGLISH

Japanese is similar to Chinese, but the tone is different.