ちょっと教えてくれませんか？

[toshichan]

Hello!
I'm trying to translate some manga pages but there are a few things I don't understand well.
For example, this sentence:

①太郎まであたしを仲間外れにする気！？

I think is something like:
"You are excluding me (from our group of friend)?" but I'm not sure that is the best translation. Why that まで？
Then, this. Chara A save the life of chara B, hitting a ill evil-minded man behind him:

②太郎だって後ろとられてやんの～

I don't understand well that とられて。 I think is something like "you didn't see you had someone behind you?"
Then, there is a cheerful character who greeting another in this way:

③"Oh man, you got already a new girl? 女も国も股にかけ！！

Well, that 女も国も股にかけ is pretty unclear for me. I vaguely understand its meaning, and despite my efforts, I can't translate it in a proper way.
Last one is this:

④この手の話は雪がからむと笑えねえし・・・産むから・・・ないな

The sentence is refer to a silly talk between two characters. I suppose is something like:
"This kind of conversation is useless, if Yuki getting involved there won't anything to laugh about...right?" but I'm totally unsure.

Sorry for the questions, I hope to don't bother you.
Thank you so much in advance!

[Ongakuka]

I don't know the full context even with the information you provided, so it's really difficult to advise on this. You might get something out of what I put or you might be useless.

Why that まで？

as in 'as far as Yuuta?' (could understand maybe a little better if it was someone other than Yuuta, but for Yuuta that is geniunely surprising.)

I don't understand well that とられて。

とられる = get caught. Put into 'te' form and then add やんの which is a contraction.

女も国も股にかけ！

Not sure, first time to see that phrase.

This kind of conversation is useful

Where did you get 'useful' from?

[NileCat]

Please allow me to explain in Japanese. Since you're translating them into proper English, my poor English would be nothing but a terrible example...

1. 勇太まで here means "even" (you, Yuuta).
あんたまでもが（他のみんなと同じように）、あたしを仲間外れにする気なの？

EDIT: If "even" is not a good word, well, it's something like "not you too, Yuuta"
It's like "And thou Brutus!" feeling...


2. 後ろとられてる
「後ろをとる」は、文脈によっていろいろな意味にとれます。
しかし、基本的には、戦闘機の空中戦をイメージするといいと思います。
戦闘機が飛んでいる。→　敵の飛行機が来る。→　ミサイルを撃ち合う。→　後ろに位置した方が有利。
「後ろの」「位置を」「取る」　←　有利／優勢／勝ちそう
「後ろの」「位置を」「取られる」　←　不利／劣勢／負けそう
(You were about to be clobbered... or something like that.)

「とられてやんの～」は、「とられているじゃないか」「とられてやがる」「とられているくせに」と似ていて、相手をからかう場合の口語表現です。

3. 女も国も股にかけ
「股に掛ける」・・・各地を歩き回ったり、飛び歩く。
e.g.　「彼は世界中を股に掛けた冒険者だ」
「彼は国中を股に掛けた探検家だ」

つまり、ここでは「国」だけでなく、「各地の女性」をも「遍歴／征服／制覇」した勇者、といったニュアンスになります。(exploring/conquering countries and women..みたいな・・・）

4. この手の話はママがからむと笑えねえし・・・産むから・・・ないなママ
これは、その前の会話がわからないと、意味がよくわかりません。

おそらく、（あくまで推測です）
この手の話　（「赤ちゃんを産む」といった大人にとってシリアスな話）をママにするなんてとんでもない。ママには話せない。なぜって、ママは我々とは全く違った受け取り方をするだろうから。笑えない（つまり、ママが怒ったりして、大問題になる）。
ちょっと想像してみよう。ママに対して「産むことに決めたからね」と言った場合を・・・・（想像する）・・・げげっ、やっぱりママに話すなんてあり得ない。そんなことはできない。
(Mama is not the one of the two characters, correct? The two characters are talking ABOUT mama. Am I wrong?)

EDIT: Maybe I am wrong. Because you said this conversation is "silly". I can't recognize any silliness in the provided sentence... Everything would depend on what is the subject of the verb "産む". Who is expected to give a birth? Only the conversation BEFORE the sentence could tell. As you might know, in many cases, a Japanese sentence doesn't make sense without the context.

Please feel free to post further questions if my explanation doesn't make sense.

EDIT:　音楽家さんに先を越されました！
EDIT2: 少し補足しました