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Chasing 100M Daily Users, Duolingo Reconsiders Ads, Paying Influencers, and Its Most Expensive Plan

AI got cheap enough that Duolingo’s most expensive plan may not survive it. I read the earnings call transcript and opened the app to see what is actually changing for learners.

Dhawal Shah Sep 03, 2026

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流行病学


课程适用于非预防医学专业本科毕业的公共卫生硕士专业学位研究生，也适用于预防医学专业的本科生。课程内容既涵盖了流行病学原理与方法，也包括了流行病学方法的具体应用。
- XuetangX
- Self-Paced
- Free Online Course
高级临床护理实践


系统学习高级护理实践从理论、APN培养到个体与群体实践、管理及循证研究的完整框架。
- XuetangX
- Self-Paced
- Free Online Course
护理教育理论与实践


系统学习护理教育理论、教学方法与临床护理教学实践，培养开展护理教学活动的能力。
- XuetangX
- Self-Paced
- Free Online Course
以临床病例为导向的儿科学


本课程以临床病例为导向，讲解了包括儿科常见的、疑难的疾病的诊治。作为儿科学理论教学的补充，培养儿童常见疾病的诊治思路，建立良好的临床思维模式。
- XuetangX
- Self-Paced
- Free Online Course
现代仪器分析与药学应用


面向药学研究与质量控制，学习毛细管电泳、液相色谱、质谱、核磁共振和微流控等现代仪器分析方法。
- XuetangX
- Self-Paced
- Free Online Course
生物大分子与分子生物学


聚焦细胞信号转导、细胞周期与凋亡中的生物大分子，并延伸至绿色荧光蛋白、代谢组学和DNA测序。
- XuetangX
- Self-Paced
- Free Online Course
儿科学


结合典型病例、病例讨论与儿科操作训练，系统构建儿童常见疾病的临床诊疗思维。
- XuetangX
- Self-Paced
- Free Online Course
神经解剖学


Study the structure, function, pathways, and clinical anatomy of the nervous system, including brain imaging and Parkinson’s disease.
- XuetangX
- Self-Paced
- Free Online Course
Human System Architecture

Foundational human anatomy organized by organ systems, emphasizing organ morphology, location, and spatial relationships for medical study.
- XuetangX
- Self-Paced
- Free Online Course
口腔+X创新课程


面向口腔医学研究生，探索材料、纳米技术、增材制造与人工智能等交叉前沿在口腔医学中的研究与转化应用。
- XuetangX
- Self-Paced
- Free Online Course
医学生物实验技术


本课程从临床实践和基础科研需求出发，系统介绍医学生物实验技术的理论及应用，并注重多学科及多种技术的交叉融合，为医学生进行科学研究提供相关基础知识，并为后续研究生阶段的学习奠定基础。
- XuetangX
- Self-Paced
- Free Online Course
生殖医学研究热点（Hot Research Topics in Reproductive Medicine）

Develop research thinking through basic and clinical research methods, from cohort studies and cell culture to reproductive medicine applications.
- XuetangX
- Self-Paced
- Free Online Course
心肺功能监测与支持设备


围绕心肺监测与支持设备，讲解传感器、无创通气、体外循环和ECMO的原理、应用及临床监测。
- XuetangX
- Self-Paced
- Free Online Course
环境卫生学


本课程为学生提供了解决全球公共卫生和环境挑战的必要知识与技能，提升其研究能力，培养批判性思维和创新能力，为社会培养具备前瞻性视野的专业人才，应对全球环境挑战。
- XuetangX
- Self-Paced
- Free Online Course
Basis and Frontier Development in Medical Molecular Biology

Explores how epigenetics, cell cycle, and cell death shape tumorigenesis, with current research advances and methods for cancer prevention and treatment.
- XuetangX
- Self-Paced
- Free Online Course

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