BBC在线收听下载:网络零售巨头首开实体店

词汇讲解：

1. announce vt.宣布; 述说
例句：Please announce to the children that there will be no school this afternoon. 
请通知孩子们今天下午不上课。 

2. effective adj.有效的; 起作用的
例句：First, all users will become more effective. 
首先，所有人都将更有效率。 

3. significant adj.重要的; 有意义的
例句：The significant advantage is collaboration.
其显著的优势是协作。

4. arrest vt.逮捕，拘捕; 止住，阻止
例句：Attempts are being made to arrest the spread of the disease. 
现正设法遏止这种疾病的蔓延. 

5. investigate vt.调查; 审查
例句：Professor fish decided to investigate.
费雪教授决定深入调查。

6. occupation n.职业，工作
例句：My favorite occupation is directing a movie.
我最爱的职业就是电影导演。
 
7. collaboration n.合作，协作
例句：Collaboration and sharing are the key areas.
协作和共享是重点领域。