慢速英语:Environmentalists Worry about Zimbabwe Wetlands

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1. affect vt.影响; 假装; 感动
例句：How will her return affect his game?
她的回归会如何影响他的比赛呢?

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

3. guarantee vt.保证，担保
例句：We guarantee to fulfil our mission.
我们保证完成任务。

4. enforce vt.加强; 强迫服从; 实施
例句：Have any statistics that would enforce your argument?
你有加强你论点的统计资料吗?

5. 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。