Selenyl
[化] 氢硒基; 氧硒基
🗣️ 情景例句
then go uptown to the Museum of Natural History.
然后再往北去自然历史博物馆。
If it doesn't rain tomorrow, will you get a haircut?
如果明天不下雨的话，你会去剪头发吗？
There is so much variety that you never have to make do with second best.
物品种繁多，从来不必用二等品来凑合。