席（せき）に持ち帰（もちかえ）って調（しら）べてやるよ。

Well, let me take it back and figure it out for you.

持ち帰（もちかえ）ります。

I'll take it home with me.

汚（けが）さない限（かぎ）り、この本（ほん）を持ち帰（もちかえ）ってもいいですよ。

You may take this book as long as you keep it clean.

必要（ひつよう）なだけお持ち帰（もちかえ）りください。

Keep as many as you need.