怎麽翻譯？

Teacher:Hi,Anna.Are these your pencils?老師：嗨，安娜。這些是妳的鉛筆嗎？Anna:No,they're Bob's.安娜：不，它們是鮑勃的。Teacher:And is this his green pen?老師：那這是他的綠色鋼筆嗎？Anna:No,it isn't.The blue pen is his.安娜：不，不是。這支藍色的鋼筆是他的。Teacher:What about this dictionary?老師：這本詞典呢？Anna:It's Helen's.And the green pen is hers,too.安娜：是海倫的。還有這支綠色的鋼筆也是她的。Teacher:And the eraser?Is that yours?老師：那橡皮擦呢？那是妳的嗎？Anna:Yes,it is.安娜：是的，它是。Teacher:Thank you for your help,Anna.老師：多謝妳的幫助，安娜。Anna:You're welcome.安娜：不客氣。