重点讲解：
1. be subject to 受…支配的；服从于…的；
These arrangements are subject to periodic reviews.
这几项安排每隔一定时间须予复查。
2. be eligible for 有资格的；符合条件的；有能力的；
Anyone who has worked here for over three years is eligible for sick pay.
凡在这儿工作了三年以上的人都有资格获得病假工资。
3. get rid of 摆脱；甩掉；
Try as he might, he couldn't get rid of the difficulty.
不管他怎样努力，还是摆脱不了困难。
4. due to 由于；因为；
The berry is great for the heart and cardio system due to its high polyphenol antioxidant content.
蓝莓对心脏心血管系统非常有益，因为它有高含量的多酚抗氧化物。