Prethreshold
阈前
🗣️ 情景例句
Come on, Albert, you can help us!
走 ，Albert， 你来帮忙！
No. You should have taken the Yellow Line bus. You can get one at the next stop.
不是。你该乘黄线车才是。到下一站你可以搭上。
You can call me any time.
你可以随时打电话给我。