expatriate vi.to give up residence in one's homeland移居国外:放弃在自己国家居住
education entity教育实体
entity n.something that exists as a particular and discrete unit实体:实际并独立存在的事物
例:Persons and corporations are equivalent entities under the law.
个人和企业是依法存在的对等的独立实体
co-operative arrangement合作协议
twin vi.生双胞胎, 成对
lodge vt.正式提出