Dihedral
a. (數)二面的\\nn. 兩面角
? 同義詞
??? 情景例句
Oh, please come in.
噢 請進來。
If it doesn't rain tomorrow, we'll have a picnic.
如果明天不下雨，我們就去野餐。
Are there any jobs which women don't do?
有婦女不干的工作嗎？