1. analysis [ə'nælɪsɪs] 
n. 分析；分解；验定
They collect blood samples for analysis at a national laboratory. 他们收集血样以在一个国家实验室做化验分析。

2. probe [prəʊb]  
n. 探针；调查vi. 调查；探查；探测
The more they probed into his background, the more inflamed their suspicions would become. 他们越深入调查他的背景，对他的怀疑就会越强烈。

3. identify [aɪ'dentɪfaɪ]  
vt. 确定；鉴定；识别，辨认出；使参与；把…看成一样 vi. 确定；认同；一致
There are a number of distinguishing characteristics by which you can identify a Hollywood epic. 通过其诸多与众不同的特点,你可以识别出好莱坞的史诗影片。

4. recognize  ['rekəɡnaɪz] 
vt. 认出，识别；承认； 确认
The receptionist recognized him at once. 那名接待员马上认出了他。

5. title  ['taɪt(ə)l]  
n. 冠军；标题；头衔；权利；字幕 vt. 加标题于；赋予头衔；把…称为
He was given the title of assistant manager. 他被授予经理助理的职位。

6. entitle [ɪn'taɪt(ə)l]  
vt. 称做…；定名为…；给…称号；使…有权利
If the warranty is limited, the terms may entitle you to a replacement or refund. 如果保修单有限制，这些条款可让你有权换货或退款。

7. subtitle ['sʌbtaɪt(ə)l] 
n. 副标题；字幕vt. 在…上印字幕；给…加副标题
The dialogue is in Spanish, with English subtitles. 这段对话是西班牙语的，配有英语字幕。

8. doubt [daʊt]  
n. 怀疑；疑问；疑惑 v. 怀疑；不信；恐怕；拿不准
This raises doubts about the point of advertising. 这引起了人们对于广告作用的怀疑。

9. doubtful  ['daʊtfʊl] 
adj. 可疑的；令人生疑的；疑心的；不能确定的
I was still very doubtful about the chances for success. 我仍然不能肯定成功的可能性有多大。

10. undoubtedly [ʌn'daʊtɪdlɪ]  
adv. 确实地，毋庸置疑的
He is undoubtedly the pride of China.  毫无疑问他是中国的骄傲。