Scratchboard
n. <美> = scraperboard
🗣️ 情景例句
Would you please try to keep quiet at this hour?
这么晚了，你能不能尽量保持安静。
I ought to tell him the whole story.
我应该告诉他整个事情的始末。
How long has this factory been open?
这家工厂建成有多久了？