78 graded passages with Pinyin, audio & quizzes
Phrases by situation, with pinyin & audio
Learn words through real-life situations
Stroke order for every character
The building blocks of Chinese characters
Split hanzi into parts, remember by story
由于天气原因，今天的航班不得不推迟起飞。
Yóuyú tiānqì yuányīn, jīntiān de hángbān bùdébù tuīchí qǐfēi.
Due to the weather, today's flight had to be delayed.
由于大家共同努力，这项工作提前完成了。
Yóuyú dàjiā gòngtóng nǔlì, zhè xiàng gōngzuò tíqián wánchéng le.
Thanks to everyone's joint efforts, the work was finished ahead of schedule.
由于 is more formal and objective than 因为, common in announcements. It usually doesn't open the second clause (…，由于… is odd), whereas 因为 can.
Combine Vocabulary, Grammar, Reading Practice, Listening, Hanzi Writing, and Mock Exams at HSK 4 to master all skills together.
Explore all Mandarin Chinese modules from beginner to advanced: Listening, Reading, Vocabulary, Grammar, Characters, and HSK Mock Tests.
