Explore the Dao De Jing, a philosophical text from the Spring and Autumn period. Read the original text and commentary. Navigate through chapters with a clean interface. Access free content without payment.
Teaches English through phonics and word structure. Focuses on linking sounds to letters and spelling. Explains how to break down words into phonemes and letter combinations.
Learn animal names and sounds through interactive images and audio. Compare sizes, weights, and colors using matching and sorting games. Practice shapes, numbers, and patterns with puzzles and连线 exercises.
Edit essays with AI-powered full-text feedback and error correction. Upload documents for instant grading and detailed comments. Access writing techniques, personalized ideas, and sample essays to improve composition skills.
Access and practice thousands of exam questions across all subjects including politics, English, math, and specialized fields. Review past papers and track progress.
Learn vocabulary through match-3 gameplay and word puzzles. Swipe left for unknown words, right for known ones. Automatically add unknowns to a flashcard list. Sync with multiple languages and subjects.
Learn French vocabulary with customizable wordbooks from popular textbooks and exams. Review words using real audio examples from movies, news, and broadcasts.
Learn English with comprehensive lessons from New Concept English books 1-4, including 3600 vocabulary words and 350 grammar points. Create study plans, look up word definitions, and access detailed grammar explanations.
Learn key concepts in geography, history, and civics for middle school. Answer multiple-choice questions and solve practice problems at the end of each topic. Receive one-point explanations after each answer.