今天我们要学的词是 allegiance. Allegiance 效忠。Boko Haram, the Nigeria-based terror group, has reportedly announced formal allegiance to ISIS. 尼日利亚的恐怖组织博科圣地据报导已经宣布正式效忠伊斯兰国恐怖武装。美国公立学校学生上课前往往会背诵效忠誓词。不久前，A Portland high school's senior class president raised some eyebrows when she told students they can opt out of reciting the Pledge of Allegiance. 波特兰一所高中毕业班学生会主席告诉同学，可以选择不背诵效忠誓词，她的这种做法引起不少人侧目。好的，今天我们学习的词是 allegiance, allegiance, allegiance...