Oxynitration
羟硝化作用(同时加上羟基和硝基)
🗣️ 情景例句
Yes. This is Richard Stewart.
是的。我是Richard Stewart。
Did you sleep well last night?
你昨晚睡得好吗？
Come up these steps with me, please, and be careful.
请跟我走上这些台阶，请小心点。