黑色笔尖 → black nib

In the English stationery and writing class, the teacher used the black pen tip to teach us the phrase "black nib" and explain its use and characteristics.

The children looked at the nib and said "The black nib writes smoothly on the paper" in English to describe the performance of the writing instrument.

In foreign language stationery books, "black nib" is often classified as the core component of fountain pens, and the writing effect of different nibs of different materials is different, helping to understand the English expression of stationery scenes.