Lightpen
n. 光笔（计算机的一种输入设备）
🗣️ 情景例句
His house is on the left.
他的房子就在左边。
My brain doesn't seem to be working well today.
我的头脑今天好像不太灵光。
And then quickly and quietly we did just that.
于是，我们就迅速而且悄悄地干了起来。