n. 签证vt. 签发【化】 签准; 签证【经】 维萨信用卡

◆记忆方法一：
谐音：为啥 办签证为啥难？
◆记忆方法二：
分析：vi——六；s——像美女；a——“一”。
记忆：六个美女共用一张签证。

◆记忆方法三：
联想方式：vi罗马数字6，s美女，a一
记忆方法：6个美女共用一张签证。

television/revision/revise/review/view/video/evident/evidence/visible/invisible/visit/visitor/visa/passport
记忆：
1. 词根vis,vi表示“看”，前缀tele-表示“远”，television [ 5teliviVEn] 远远地看，电视。 Many people would be at a loss at night if there were no television.如果没有电视的话很多人在晚上就会不知所措了。
2. revision [ ri5viVEn ] re-, “又”， revision, 又看， n. 修订, 修改。He made some revision before he handed the report in. 在递交报告前他作了一些修订。
3. revise [ ri5vaiz] v. 修订, 修改 The report has been revised again and again so that the public won’t be so angry at the inhuman actions. 报告作了反复了修改，公众就不会对那些非人道的行为那么生气了。
4. review [ ri5vju:] vt. 回顾, 复习 n. 回顾, 复习, 评论 At night we’d better review what we learn during the daytime.晚上我们最好复习一下白天学习的内容。
5. video [ 5vidiEu ] n. 电视, 录象, 视频 The video of the abuse aroused international criticism. 虐囚录象引起了国际上的批评。
6. evident [ 5evidEnt] e-vid-ent 看得出来的， adj. 明显的 There are evident wound in the prisoner’s body. 在囚犯身上有明显的伤痕。
7. evidence [ 5evidEns] n. 明显, 迹象，证据, 证物 No evidence showed he was murdered. 没有证据表明他是被谋杀的。
8. visible [ 5vizEbl ] adj. 看得见的, 明显的 The Mount Emei is visible if it is fine.天晴的时候看得见峨嵋山。
9. invisible [ in5vizEbl ] adj. 看不见的, 无形的 It seems that an invisible hand was pushing her ahead. 好象有一只无形的手在推着她向前。
10. visit [ 5vizit ] vt. 拜访, 访问, 参观 This afternoon we’ll pay a visit to Pro. Zhang. 今下午我们要去拜访张教授。
11. visitor [ 5vizitE ] n. 访问者, 来宾, 游客 The temple has 2000 visitors on average every day. 每天平均有2000游客来看这座寺庙。
12. visa [ 5vi:zE ] n. 签证 It often take a long time to receive a visa. 办签证经常要花很长的时间。
13. passport [ 5pB:spC:t] n. 护照 Without a passport, it’s illegal to cross the border. 没有护照，越境是非法的。
另类阅读：
The visitors with American visa visited the television tower from where they found the Mount Emei visible. Later, they read a review about it in a newspaper whose idea they quite agreed with.