夜以继日
yèyǐ-jìrìTraditional 夜以繼日
day and night
Every meaning
yèyǐ-jìrì
- day and night
Its characters
Words with 夜
Words with 以
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).