ballpoint
noun /ˈbɔːlpɔɪnt/
/ˈbɔːlpɔɪnt/
(also ballpoint pen)
- enlarge imagea pen with a very small metal ball at its point, that rolls ink (= coloured liquid for writing, etc.) onto the paper
圆珠笔;原子笔 compare Biro™Collocations DictionaryBallpoint is used before these nouns:- pen