Unit 4 Breaking boundariesboundary n 1 分界线；边界boundary between The Mississippi River forms a natural boundary between Iow,Unit 5 A delicate worlddramat
词汇-2019新外研版高中英语选择性必修第二册Tag内容描述：
1、Unit 4 Breaking boundariesboundary n 1 分界线；边界boundary between The Mississippi River forms a natural boundary between Iow。
2、Unit 5 A delicate worlddramatic adj 1 巨大而突然的，急剧的dramatic changeshiftimprovement Computers have brought dramatic changes 。
3、Unit 2 Improving yourselfsecurity n 1 保安措施，安全工作 The trial was held under tight security.这场审讯是在戒备森严的情况下进行下进行的。
lax securi。
4、Unit 6 Survivalcrime n 1 泛指犯罪 We moved here because there was very little crime. 我们搬到这里来使因为这里的犯罪率很低。
Police officers are。
