重点词汇

1. be made of 由……制成（可以看出原材料）

2. be made from 由……制成（看不出原材料）

3. be known for 因……而闻名（出名）

4. be known as 以（某种身份）而出名

5. as far as I know 据我所知

6. （试读）...