ZTS needs a Native English speaker to proofread, or at least someone who is fluent in English. Everything sounds...off.
"Only the skin is hurt." could be "Only the skin is injured". No one, who isn't a child, talks like "my <X body part> is hurt".
"Teacher, my hand is also hurt." Sounds off, "Teacher, I also injured my hand." sounds better.
"It will sting a bit~" should be "This will sting a bit~".
And some other instances, like I am sure in some places "women" should be replaced with "girls", "I see that basketball isn't suitable for girls~". As an example.
"Yes, I finished eating." Again, sounds unnatural "Yes, I finished lunch." is better, or "Yes, I am done eating." or "I HAVE finished eating.". It all depends on how recently he finished with his lunch.
"I am very expectant of it." Also sounds off.
Basically seems all their issues are typical ESL issues. Which a decent editor should catch.