重点讲解:
1. cut down 砍倒(树木);
A vandal with a chainsaw cut down a tree.
一个故意破坏公物的人用链锯伐倒了一棵树 。
2. withdraw from 撤回;(使)撤离;
Staff wi thdrew from the main part of the prison but secured the perimeter.
工作人员从监狱的主要区域撤出,但外围仍派人守卫 。
3. be prepared for 准备好;有所准备;
Police officers must be prepared for the unexpected.
警察必须随时准备应付意外事件 。
4. in part 在某种程度上;部分地;
The levels of blood glucose depend in part on what you eat and when you eat.
血糖水平在某种程度上取决于饮食内容和时间 。