Trinitrofluorenone
[化] 三硝基芴酮
🗣️ 情景例句
He is with someone right now. Would you hold?
他现在在会客。你可以稍等吗？
What do you know about the tenth century?
有关十世纪的事你知道些什么？
Take care. The pan's very hot.
当心，锅很烫。