Lightpen
n. 光笔（计算机的一种输入设备）
🗣️ 情景例句
but I think I can be of some help to you.
但我觉得我可以对你略有帮助。
It's up to us to help those in need.
我们有责任帮助那些有困难的人。
The Cutty Sark was one the fastest sailing ships that has ever been built.
“卡蒂萨克”号是帆船制造史上建造的最快的一艘帆船。