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BBC news 2015-04-02 加文本

2015-04-02来源:BBC

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词汇讲解：

1. gain vt. 获得; 赢得
例句：Its gain is the product of the gains of its constituent branches.
它的增益等于它含有的分支的增益的积。

2. significant adj.重要的; 有意义的
例句：The advantage for new users will be immediate and significant.
对于新用户来说，好处是显而易见的。

3. involve vt.包含; 使参与，牵涉; 围绕
例句：Clouds involve the mountaintop.
云雾笼罩山头。

4. complex adj.复杂的; 难懂的
例句：Advanced-level dialogues feature more complex sentence types.
高级会话以更复杂的句式为特点。