正文

VOA慢速英语:Sweet Potatoes as Medicine

2015-07-01来源:VOA

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词汇讲解：

1. explain vt.讲解，解释
例句：She sent him letter after letter to explain the delay.
她一封接一封地给他寄信解释推迟的原因。

2. 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。

3. effective adj.有效的; 起作用的; 实际的
例句：It would say, for example, 0–9. Short, terse, but very effective.
比如说它显示0~9，简短、简洁，而且非常有效。

4. improve vt.提高（土地、地产）的价值; 利用（机会）; 改善，改良
例句：His manners will improve with age.
随着年龄的增长,他的举止是会逐渐改进的。

5. appear vi.发表; 出现，显现
例句：Mrs. Gummidge did not appear to be able to cheer up.
格米治太太好象怎么也鼓不起兴致来。