Middle mastery: Suitable for someone who has the certain oral ability, but still need to improve.

中高级：适合有一定口语基础，但较一般需要进一步提高者。

youdao

Middle mastery: Suitable for someone who has the certain oral ability, but still need to improve.

中高级：适合有一定口语基础，但较一般需要进一步提高者。

youdao