VOA慢速英语:Search for Malaysia Airplane Enters Third Week

1. inform vt.通知; 使活跃，使充满; 预示; vi.通知; 告发;  
例句：By may the time had come to inform the dealers of their plans.
到了今年五月，正是将计划告知经销商的时候了。

2. extremely adv.极端地; 非常，很; 去; 绝;
例句：Unemployment benefit is extremely limited.
失业救济也极为的有限。

3. demand vt.要求，请求; 需要; [法]召唤; 询问，盘问;
例句：Loan demand is still falling.
贷款需求仍不断下降。

4. consider vt.& vi.考虑; 把（某人，某事）看作…，认为（某人，某事）如何; 考虑，细想;
例句：Do you consider yourself successful?
你认为自己能成功吗？

5. sighting n.照准，观察，视线;
例句：And we can't control when or where a sighting occurs.
而我们也无法控制何时何地会有目击发生。