CRI听力:Valentine's Day: Where does the Tradition Come from?

2. promote vt. 促进; 推动; 增进
例句：The organization works to promote the trade between nations.
该组织旨在促进各国之间的贸易。

3. evidence n. 证词; 证据; 迹象
例句：A scientist must produce evidence in support of a theory.
科学家必须提供证据以支持其理论。

4. acknowledge vt.承认, 供认
例句：He grudgingly acknowledged having made a mistake.
他勉强承认他做错了。

5. trace vt. 追溯；探索; 跟踪，追踪
例句：The book traces the history of social development.
这本书追溯了社会发展史。

6. anniversary n. 周年纪念，周年纪念日
例句：Today is my parents' 30th wedding anniversary.
今天是我父母结婚30周年纪念日。

7. tender n. 投标
例句：The firm's tender for the supply of timber has been accepted.
那家商号的供应木材投标已被接受。

8. inscription n. (作者)题词, 献词
例句：There was an inscription in Chinese characters over the arch.
牌楼上有汉字题字。

9. ingrained adj. (指习惯、字迹等)牢固的, 极难除掉的
例句：The belief that one should work hard is ingrained in our culture.
人人都应该努力工作这个信念在我们的文化中根深蒂固。

10. skirt vt. 避开(危险等);回避(问题等)
例句：It is almost impossible to skirt the knotty problem.
想回避这个棘手的问题几乎是不可能的。