Word data
HSK
Not in HSK
FREQUENCY
Unknown
磨穿鐵硯 mó chuān tiě yàn
to persevere in a difficult task (idiom)
Word data
| HSK | Not in HSK |
| Frequency | Unknown |
Definitions
- 1. to persevere in a difficult task (idiom)
- 2. to study diligently (idiom)
- 3. to grind one's way through an ink stone