Proofmark
n. 验迄印记
🗣️ 情景例句
Oh, this is my father. He's a doctor.
噢， 这是我父亲， 他是一名医生。
What were you doing when I called you on the telephone?
当我打电话给了你时，你正在做什么？
Let's watch TV with a candle on.
咱们点上蜡烛看电视吧。