Title: Obscure
Product review: The grammar explanation can be very very obscure sometimes. And more than once my teacher have to say that the text is not gramatically correct (he's a Chinese).Learning the voca is fine but the fact that most chapters are not related makes it almost impossible for learners to review and relate between subjects.The dialogues are very hard, very daunting in the sense that they are ways too long. I am an English learners and I am comparing between some best English textbook and this. Not to mention, the Chinese characters make it even more difficult.
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