Serriform
a. 锯齿形的
🗣️ 情景例句
No, he doesn't, Robbie.
没有， 他没有， Robbie。
What time does the train for Boston leaves?
去波士顿的火车几点开？
It's Jim. He's in that tree. He can't get down. Can you help him?
是吉姆，他在树上，下不来了，你能帮他吗？