正文

VOA慢速英语:Changing Prepositions With 'Provide'

2016-04-01来源:VOA

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词汇讲解：

1. insurance n.保险费; 保险，保险业
例句：Open cover is an even more flexible type of insurance.
预约保险是一种灵活性更大的保险类别。

2. appear vi.发表; 出现，显现
例句：They appear to be very sensitive to mildly corrosive environments.
它们似乎对轻度的腐蚀环境非常敏感。

3. preposition n.介词; 前置词
例句：The word is compounded of a preposition and a verb.
这个词是由一个介词和一个动词复合而成的。

4. assistance n.帮助，援助
例句：He refused the proffered assistance.
他拒绝接受向他提供的帮助。