Engraving an Eggshell: Three Cities, One Machine
One Topic. Three Levels.
Each level includes Audio, Transcript, Quiz, and Core Vocabulary.
One Topic. Three Levels. Three Perspectives.
Each level includes a Reading Passage, Quiz, and Core Vocabulary.
OPI-Style Speaking Practice.
Guided speaking tasks inspired by the OPI.
雄安新区：未来之城如何建设？
社会救助：有稳定收入，也能获得帮助吗？
机器人检测：如何验证真实可靠性？
