英语翻译1、下次我们过来的时候提前两天告诉你,前几次总是有事没来 太不好意思了.2、通过背诵能提高英语吗?我想背新概念二

1. We will inform you two days in advance when we come next time. Sorry that we couldn't come the last few times due to some other commitments.
2. Can I improve my English by memorizing English text? I am thinking about reciting the passages of "New Concept II". Or would it be better to memorize more words so as to increase my vocabulary?
3. When I read a sentence, I can more or less get its meaning. However, it is difficult for me to explain it.