VOA慢速英语:Will China's Continued Big Spending Lift its Economy?

词汇讲解：

1. increase vt. 增加，增大
例句：He exhorted his workers to increase production. 
他力劝自己的工人增加生产。

2. announce vt.宣布; 述说
例句：Please announce to the children that there will be no school this afternoon.
请通知孩子们今天下午不上课。

3. promise vt.允诺，许诺
例句：Besides, I want you to promise me one thing. 
此外,我要你答应我一件事。 

4. guarantee vt.保证，担保
例句：I can guarantee that you will be satisfied with the result. 
我保证你会对这个结果满意。 

5. estimate vt.估计，估算
例句：You estimate his intellect too highly. 
你把他的智力评估得太高。 

6. replace vt.替换; 代替
例句：We undertake to replace any product not up to the specifications. 
产品不合规格，保证退换。