Dihedral
a. (数)二面的\\nn. 两面角
✅ 同义词
🗣️ 情景例句
Why don't you call back later this afternoon?
你何不今天下午再来电话呢？
Please tell him to stop jumping up and down.
请告诉他不要调上跳下。
Learn to say the right thing at the right time.
学会在适当的时候说适当的话。