Nitrolignin
硝化木素
🗣️ 情景例句
Right. What's old?
对了， 旧的东西是什么？
Yes. And another thing, would you mind not making long distance calls?
是的。还有一件事，请你别打长途电话了，好吗？
Some of this heat near the earth's surfact is used to make electricity.
靠近地表的一部分热量已被用来发电。