慢速英语:How Much Do Illegal Immigrants Pay in Taxes?

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1. release vt.释放; 发布; 发行
例句：He had won his first release from the fences of home.
他第一次成功地脱出家庭的樊笼。

2. meaningful adj.有意义的; 意味深长的; 有意图的
例句：The remarks are meaningful and thought-provoking.
耐人寻味。

3. permit vt.许可，准许
例句：An enlightened government should permit the free expression of political opinion.
一个开明的政府应当允许自由发表政见。

4. estimate vt. 估计，估算; 评价
例句：I asked a contractor to estimate for the repair of the house.
我请了承包商估计修缮这幢房子的费用。