未知题型
He has a foreign friend who lives in the United States.英译汉
他有一个住在美国的外国朋友。
未知题型 The Olympic Games is an international sports event that takes place every four years.英译汉
单项选择题 ()是一种以一个或多个类别且分散化的资产做作抵押支持而发行的固定收益证券，其本质是对信用风险重新划分的过程。
未知题型 The traffic jams during morning and afternoon rush hours are a headache in big cities now.英译汉
