32．in circulation 流通

33．one coin of a certain kind 某一种硬币

34．As with...至于

35．Nor should you ever clean an old coin= you should not ever clean

36．The records are put into different categories. 这些记录分不同类别进行归档.

Unit 2

1．Trade and curiosity have often formed the foundation for mankind's greatest endeavour. 贸易和好奇常常成为人类最伟大努力的基础.

2．search for 探寻 ( in search of)

3．the distant, wealthy Asian lands遥远而富裕的亚洲大陆

4．It is well known that (众所周知) Africa had contacts with (与...有接触) India and the Red Sea civilisations from the earliest times.

5．Silk from China found its way over land along the Silk Road to India, the Middle East and Rome, in exchange for (交换) spices and glass.

• find one's way "发现到某处的途径"

• feel /make / fight /push one's way

• (lose one's way迷路)

6．meet with sb. /sth. "与某人会晤/遇到;经历某事物"

7．hear about " 听说"

8．know about "了解"

9．with descriptions of ...用...描写

11．The Arabic contacts (n.) to "与...接触"the African coast led to the next meeting between black people and a Chinese.

lead to + n. "导致" (lead led led )

12．In the year 751, the Chinese traveller Du Huan was taken prisoner by the Arabic army.

take/ hold sb prisoner/captive

= keep or take sb as a prisoner "囚禁或俘虏某人"

Sb. be taken prisoner by ...

13．wander through... "游荡;流浪"

wander through the countryside 在野外闲逛

14．give information on 提供有关信息

15．make a voyage/ journey/trip to = go on a voyage / journey/ trip "通过海路/ 陆路来到..."

16．date from = date back to 始于,追溯到,

18．have the will to do sth 有意要做某事

19．under (the) command of 在某人的指挥下=Under sb's command

20．set sail from... to...从...出发向...航行

21．renew relations with...恢复同...的关系

22．in return作为对...的回报/付款

I bought him a drink for his help in return.

in turn = one after the other 依此;逐个

The girls called out their names in turn.

23．For a short time 在短期内