But I was really surprised to see this.

The no.1 priority in China is to learn English, and then Japanese. (is this what you meant?)

She said that she doesn't agree with this opinion in her entry.

Her Japanese is so casual, which I really envy about.

But Japanese people's reactions in their comments were really surprising.

(1)I have read another of your entries and think you're really good at Japanese on the whole.

But if you want to use Japanese in business, you should learn correct Japanese, not casual Japanese.

(2)I'm happy to see you prefer Japanese over English.

But I think it's better for you to be adequate with both English and Japanese.

Japanese people have had a feeling like "English is No.1 and Asian is the next" previously.

Japan has developed and has been losing that feeling.

Now we want to learn and absorb the other cultures, and introduce our culture to let the people over the world know it.

I already knew that they were.

Actually I'm going to translate some people's comments on another blog into English, because I have nothing to write today, but I still want to write something. (Here I think it's better to not use the pronoun "this", because it's not immediately obvious what "this" is from the context.) :)

The entry's title was, "They have the No.1 priority in English and second in Japanese in China".

The author is a young Chinese woman who is learning Japanese.

She seems really into manga in her profile. (This makes sense, but would sound slightly more natural as: "From her profile, it seems that she is really into manga.")

She said in her entry that she disagrees with this opinion.

She wants to put a priority on learning Japanese rather than English.

Because Japan and China share many cultural similarities.

Her Japanese is so casual, which I really envy about.

But the Japanese people's reactions in their comments were really surprising.

(1)I read another one of your entries and think you're really good at Japanese on the whole.

But anime and manga seem to have a big influence on you.

It's OK if you write about them in your personal entries. ("Personal" and "private" both work well here, but "private" sounds a little like no one else can see her entries.)

But if you want to use Japanese in business, you should learn correct Japanese, not casual one.

(2)I'm happy to see that you prefer Japanese to English. (To use "prefer" correctly, we say either "I prefer A to B." or "I prefer A over B." = 「BよりAが好きです」)

But I think it's better for you to be competent in both English and Japanese.

Japanese people used to feel like "English is No.1 and Asia is second best." before.

However, Japan has developed since then, and that feeling is disappearing.

Now we want to learn and absorb the other cultures, while also introducing our own culture to people all over the world.

(3)I just can't understand at all why you want to write about this serious topic in such a casual way.

Is it the way your friends talk?

You would be perfect if you wrote in more beautiful Japanese.

I especially want you to stop using `～っすか`. ("especially" modifies "want", so it sounds a little more natural closer to the verb.) :)

Could you learn proper Japanese, please.

(4)You are good at talking (writing) in the style of a young girl.

But you can't use it in public or with elderly people.

I'll just have to accept them. ("just have to" = 「しょうがない」な感じ)

She wants to put a priority on learning Japanese rather than English, since Japan and China share many cultural similarities.

Her Japanese is so/really casual, which I really envy.

Oh my god, this made me laugh :)

Holy crap, did they really say that??

I'm happy to accept them.

She wants to put a priority on learning Japanese rather than English because Japan and China share many cultural similarities.

Because Japan and China share many cultural similarities.

Her Japanese is so casual, which I envy.

I'd be happy to hear them.