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BBC在线收听下载:奥巴马访问密歇根州安抚水污染危机居民

2016-05-06来源:BBC

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词汇讲解：

1. confirm vt.证实; [法] 确认，批准
例句：I just want to confirm that the arrangements have been made.
我要确认所有计划都安排好了。

2. fulfill vt.履行（诺言等）; 执行（命令等）
例句：We engage to fulfill certain obligations.
我们保证履行一定的职责。

3. engulf vt.吞没; 吞食
例句：The fire spread quickly via stairways to engulf the entire building.
大火经楼梯迅速蔓延至整座大厦。

4. imagine vt.想像; 想，设想
例句：I did not imagine that you would sink to cheating.
我没想到你会堕落到去行骗。

5. boost vt.增加; 促进，提高
例句：Last month saw a tremendous boost in sales.
上个月的销售额激增。