Lockplate
锁定板
🗣️ 情景例句
Hi, Dad. Am I interrupting you?
嗨，爸爸。我打搅了你吗？
I see. I'll go and check.
噢，原来是这样，那我再去查查看。
But as the paper moved from side to side under the pen point,
由于纸在笔尖下来回运动，