| 词汇 | ballpoint pen |
| 释义 | ☞ ballpoint ball·point pen /ˏbɔlpɔɪnt `pɛn; ˌbɔːlpɔɪnt ˈpen/also 又作 ballpoint n [c]a kind of pen with a very small ball in the end that controls the flow of ink 圆珠笔，原子笔 |
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