1. It´s a dictionary. I hope it will help you.
    这是一本词典. 我希望它会对你有帮助.

2. It´s a dictionary.
    是本词典。

3. I carried a little dictionary with me everywhere I went, as well as a notebook in which I listed any new words I heard.
    不管去哪里，我都随身携带一本袖珍字典和笔记本，笔记本上记着我听到的生词。