Check real-time air quality data for cities in China and globally. View PM2.5, PM10, temperature, humidity, pressure, and other pollutants. Display AQI levels with color-coded categories indicating pollution severity.
Learn English with AI listening, speaking, reading,
Learn English through listening, speaking, reading, and vocabulary building. Practice with AI speech correction, video and article listening, and interactive games.
Learn vocabulary through real-life English sentences, word roots, and prefixes. Access 150,000+ example sentences, 5,000+ phrase pairs, and 2,000+ word roots. Study from Collins dictionary, track exam-focused terms, and review with spaced repetition.
Access and read 442 hymns with simplified notation matching the physical hymnbook. Search by keywords. Enable night mode for better visibility in low-light settings.
