1. The result is mammoth traffic jams, frequent accidents, and often unpleasant crowding for pedestrians.
    结果产生严重的交通堵塞，经常发生交通事故，步行者则不愉快地挤来挤去。

2. Next, x-rays show your mother has a lung infection — a frequent problem with stroke patients.
    而后，X光透视显示，你母亲肺部受到感染，这是中风病人的常见病症。

3. As a result, the poor man continued on for nearly three more months with a painful throat and frequent bleeding caused by sores in the mouth.
    结果，可怜的老人又多活了近三个月，喉咙依然疼痛不已，嘴里也因灼痛而经常出血。

4. Snows are frequent in this area during December.
    这个地区十二月下雪是常事。

5. So I drove back to the town and began to retrace the route, taking frequent glances at the map.
    因此，我驱车返回那座城镇，并开始重新按路线走，同时频频地看着地图。

6. So I drove back to the town and began to retrace the route, taking frequent glances at the map.
    于是我驾车返回小镇，重新按路线行驶。

7. My girlfriend writes frequent letters to me.
    我的女朋友频繁地给我写信。

8. Roman physicians described the chills and fevers and recurring attacks of malaria, noting that it was most frequent in low, marshy areas.
    罗马时代的医生描述了疟疾患者的周期性寒热，指出它多发生在低洼沼泽地带。

9. Frequent computer analyses could tell whether workers, like air traffic controllers, are seeing all activity clearly enough to monitor it properly.
    采用频繁的电脑分析，能够了解到工作人员，如飞行调度员，是否对工作全局一目了然，从而做好各自的工作。