Update to remove grammar errors: It is said that it's easier for Japanese to learn Mandarin as Chinese character or kanji is used in both countries.
The word "kōkō" is a common word in both Japanese and Chinese.
The word "kōkō" is a common word in both Japanese and Chinese.
The word "kōkō" is a common word in both Japanese and Chinese.
The word "kōkō" is a common word in both Japanese and Chinese.
The word "kōkō" is a common word in both Japanese and Chinese.
The word "kō
The word "kōkō" is a common word in both Japanese and Chinese.
The word "kōkō" is a common word in both Japanese and Chinese.
The word "kōkō" is a common word in both Japanese and Chinese.
The word "kōkō" is a common word in both Japanese and Chinese.
The word "kōkō" is a common word in both Japanese and Chinese.
The word "kō