IELTS Academic English B1 is a helper application for students and people can prep English b1 - European standards, European b1 English Test with listening and speaking lessons interesting, the following is the basic function: Vietnamese Dictionary of English + offline: approximately 100k from offline to help you investigate and do not need an internet connection + Translate text English: is a feature that allows you to translate a long text, but this feature need to use the internet when used +