词汇讲解：
1. exchange n. 交换, 互换, 交流, 掉换
例句：There have been numerous exchanges of views between the two governments.
两国政府间曾多次交换意见。
2. conflict n. 战斗, 斗争; 冲突, 抵触, 争论
例句：Your statement is in conflict with the rest of the evidence.
你的陈述同其余证据有矛盾。
3. release vt.释放; 放开；发布; 发行; 发售
例句：They released the prisoners.
他们释放了俘虏。
4. ease vi. 缓和, 改善, 放松
例句：They did this to ease their economic crisis.
他们这样做是为了缓和经济危机。
5. tension n. 紧张的状态
例句：The diplomat threw in a joke, and the tension was instantly relieved.
那位外交官插进一个笑话, 紧张的气氛顿时缓和下来。
6. temporary adj. 临时的, 暂时的, 短时间的
例句：They just reached a temporary agreement.
他们只是达成一个临时协议。
7. security n. 安全；抵押品；有价证券
例句：They lulled her into a false sense of security.
他们哄骗她, 使她产生一种虚假的安全感。
8. evacuate v. 撤离, 疏散
例句：They all evacuated when the enemy approached the city.
敌人逼近这个城市时他们已撤退了。
9. decade n.十年, 十年间
例句：Prices have risen steadily during the past decade.
过去的十年间, 物价一直在上涨。
10. seep vi.(液体)渗, 渗透
例句：Water had been slowly seeping away from the pond.
池塘里的水一直在慢慢渗漏。
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