pull up the drawbridgea) to stop being involved in something 抽身退出 Perhaps we should just pull up the drawbridge and let them get on with it. 也许我们应该抽身退出,让他们接着干下去。
b) to stop more people coming into a country, joining an organization etc 关上大门〔指阻止更多人进入一个国家、加入一个组织等〕
→ pull up the drawbridge at drawbridge(1)