慢速英语:American History: A Fresh Start

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1. remember vt. 记得,想起,回忆起
例句：I remember telling you about it once.
我记得这事和你谈过一次。

2. persevere vt. 坚持不懈
例句：In spite of all obstacles and failures, the scientist persevered with his experiments.
尽管阻力重重并屡遭失败这位科学家还是坚持试验。

3. suppose vt. 猜想,以为
例句：I suppose he is still in town.
我想他还在城里。

4. define vt. 解释,给...下定义
例句：Do you know who defined man as a rational animal?
你知道是谁将人说成是有理智的动物的?

5. vote n. 选举,投票,表决
例句：The matter will be decided by vote.
此事将投票表决。

6. affect vt. 影响;对...发生作用
例句：The amount of rain affects the growth of crops.
雨量影响作物的生长。

7. assert vt. 断言,声称
例句：She asserted her innocence.
她宣称她是清白的。