Rackscope
支架式示波器
🗣️ 情景例句
Why are you in such a good mood?
你怎么心情这么好？
I couldn't help it.
我没有办法。
Haven't you heard of him? He's a very famous singer. He's singing at the New Theatre on Saturday.
你没听说过他吗？他是个著名歌手。他星期六将在新剧院演出。