之所以
zhīsuóyǐ
the reason why (used with 是因为)
Every meaning
zhīsuǒyǐ
- the reason why (used with 是因为)
Its characters
Words with 之
Words with 所
Meanings are from Mandarin The Wild’s own dictionary. Levels follow the official HSK word list (the exam’s 2025 syllabus, levels 7–9 shown together).