英语沙龙：可在体内拍照的药丸

Picture Snapping Pill

Physicians perform more than two million endoscopies a year on the small intestine¹，looking for cancers and other ailments² by inserting fiber－optic tubes via the throat or rectum．This often requires sedation，can be uncomfortable，and some areas remain inaccessible³．But now doctors have a tool that can see more of the small intestine．The M２A ――recently approved for use along with traditional endoscopes ――is a wireless⁴ video capsule that’s swallowed．It maps the intestine as you go about your business．The M２Asanps two pictures a second for eight hours as it passes through a patient’s system，beaming images to a small recorder worn at the waist．These images are then downloaded to a computer for doctors to analyze⁵．The capsules won’t banish⁶ the endoscope，however doctors believe that the M２A is an important diagnostic advance．

可在体内拍照的药丸

每年内科医生要在狭窄的小肠上做２００多万次的内窥镜检查，通过从喉部或直肠处插入的纤维视觉管寻找各种癌变和其他疾病的迹象。这种方法经常需要对病人施以镇定剂，可能会有不舒适的感觉，而且有些地方还探察不到。但是现在医生们有一个可以大范围地监察小肠的器具。

最近批准的可与传统的内窥镜共同使用的M２A是一种可吞咽的无线影像胶囊。在不影响你正常活动的情况下就可以对肠道进行拍摄取照。M２A在人体系统内运行时，每秒可拍两幅照片，可在病人体内连续工作８小时。所拍图像被戴在腰间的一个小记录器接收、保存。然后这些图像将被下载到电脑里供医生们进行分析和研究。这种胶囊不会取代内窥镜检查的方法，但医生们认为M２A是医学诊断上的一个重大进展。

1 intestine   

adj.内部的；国内的；n.肠

参考例句：

• This vitamin is absorbed through the walls of the small intestine.这种维生素通过小肠壁被吸收。
• The service productivity is the function,including external efficiency,intestine efficiency and capacity efficiency.服务业的生产率是一个包含有外部效率、内部效率和能力效率的函数。

2 ailments   

疾病（尤指慢性病），不适( ailment的名词复数 )

参考例句：

• His ailments include a mild heart attack and arthritis. 他患有轻度心脏病和关节炎。
• He hospitalizes patients for minor ailments. 他把只有小病的患者也送进医院。

3 inaccessible   

adj.达不到的，难接近的

参考例句：

• This novel seems to me among the most inaccessible.这本书对我来说是最难懂的小说之一。
• The top of Mount Everest is the most inaccessible place in the world.珠穆朗玛峰是世界上最难到达的地方。

4 wireless   

adj.无线的；n.无线电

参考例句：

• There are a lot of wireless links in a radio.收音机里有许多无线电线路。
• Wireless messages tell us that the ship was sinking.无线电报告知我们那艘船正在下沉。

5 analyze   

vt.分析，解析 (=analyse)

参考例句：

• We should analyze the cause and effect of this event.我们应该分析这场事变的因果。
• The teacher tried to analyze the cause of our failure.老师设法分析我们失败的原因。

6 banish   

vt.放逐，驱逐；消除，排除

参考例句：

• The doctor advised her to banish fear and anxiety.医生劝她消除恐惧和忧虑。
• He tried to banish gloom from his thought.他试图驱除心中的忧愁。