ballpoint pen
原始詞典資料1 筆記錄
這個字我們還沒有寫成教學內容。以下是外部詞典記錄的用法，原文照列，方便你先看懂它的意思。
ballpoint pennoun/ˈbɔːlˌpɔɪnt pɛn/
- 1
A pen, similar in size and shape to a pencil, having an internal chamber filled with a viscous, quick-drying ink that is dispensed at the tip during use by the rolling action of a metal sphere (around 0.7 mm to 1 mm in diameter).
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。