Permactron
双注电子波管
🗣️ 情景例句
Ah, Richard, Marilyn, I want you to meet John O'Neill.
啊 Richard Marilyn 我向你们介绍John O'Neill。
I know the boy whose father is a painter.
我知道那个男孩的父亲是画家。
I don't know whether you care to answer right away.
我不知道你是否愿意立即回答。