Dianion
二价阴离子
🗣️ 情景例句
What's so special about him?
他有什么特别的呢？
It is not polite to eavesdrop on the conversation of other people.
偷听他人说话是很不礼貌的。
It doesn't matter. I like walking. Look at the sun! It's a fine day for a walk.
不要紧。我喜欢步行。瞧瞧太阳！这是步行的好天气。