alternate angle内错角
corresponding angle同位角
vertical angle对顶角
central angle圆心角
interior angle内角
exterior angle外角
supplementary angles补角
complementary angle余角
adjacent angle邻角
acute angle锐角
obtuse angle钝角
right angle直角
国际田径联合会继续禁止俄罗斯选手参赛
国内英语资讯:Senior CPC official calls for more intelligent methods in political, legal work
国内英语资讯:Belt and Road Initiative presents Malaysia with exciting opportunities: deputy minister
体坛英语资讯：CONMEBOL confirms Argentina, Colombia as 2020 Copa America hosts
体坛英语资讯：China smashes Kyrgyzstan 6-0 at Silk Road Hua Shan Cup
体坛英语资讯：Czech biathlete Koukalova ends her sporting career
国际英语资讯:Cameroon holds workshop to lay groundwork for implementing AfCFTA
国际英语资讯:Iraqi president says Baghdad, Washington to play key role in stabilizing Mideast
国内英语资讯:China firmly opposes U.S. remarks on ordinance amendments: spokesperson
国际英语资讯:White House talking to candidates for Fed board as Moore, Cain nominations face problems
真的很严格！原来英王室小公主和小王子是这么养成的……
体坛英语资讯：Warriors center Cousins questionable for Finals Game 1
国际英语资讯:Iran FM visits Syria, Turkey to discuss ties
国内英语资讯:Chinas top legislature launches media activity to promote Yangtze River protection
俄政府解除对调查记者的软禁
体坛英语资讯：Nadal, Federer reach mens singles third round, Bertens out of French Open
国内英语资讯:Any attempts to interfere with Chinas internal affairs doomed to failure: spokesperson
国内英语资讯:Chinese state councilor meets Bangladeshi home affairs minister
国内英语资讯:Notre Dame Cathedral blaze burns Chinese hearts
国际英语资讯:Another Irish beef plant approved for export to China: minister
国内英语资讯:Zambian govt says partnering with China to boost agricultural production
国内英语资讯:China to promote scientist spirit of new era
体坛英语资讯：Chinas golfer Li Haotong aims high at Augusta Masters
国际英语资讯:News Analysis: Nigerians yearn for harmonious executive-legislative relationship as new parl
体坛英语资讯：Golf legend Woods to play alongside Chinas Li at Augusta Masters
体坛英语资讯：China aims for best-ever medal haul in 2022 Beijing Winter Olympics
体坛英语资讯：World news agencies visit 2022 Beijing Winter Olympic sites
国内英语资讯:China improves arbitration system to strengthen credibility
国内英语资讯:Across China: Favorable ethnic policies bring benefits for Tibetan children
2019年6月英语四级作文预测：心理健康