Xanthates
黄原酸盐
🗣️ 情景例句
Well, for one thing, he's my sister's boyfriend. Ann talks about Jack all the time.
首先，他是我妹妹的男朋友。安整天就是杰克长杰克短的。
Call me tomorrow if you don't feel better.
明天如果没有好转，就打电话给我。
We had roast beef and potatoes.
我们吃的是烤牛肉和土豆。