重点讲解：
1. up to 高达；多达；
You could be disqualified from driving for up to three years.
你可能会被取消驾驶资格达三年之久9_kOuIrJ%W&Z。
2. come from 来自；
About 65 per cent of its sales come from abroad.
大约65%的销量来自国外]eYJn&QL1G_yiU。
3. be related to 相关；有关联；
The llama is related to the camel.
美洲驼和骆驼是近亲物种IteQmzkQ,Lf#o3IS+XxD。
4. be free of 无…的；摆脱了…的；
In remote regions, the air is pure and the crops are free of poisonous insecticides.
在偏远地区，空气很纯净，庄稼也不施用有毒的杀虫剂k0MkQFT)fO。