Ethidium
[化]溴乙非啶,溴化二氨乙苯啡啶
🗣️ 情景例句
Four o'clock at the advanced exercise class. With me.
四点钟去高级健身课， 跟我一起。
Where is the ticket office?
售票处在哪儿？
Excuse me, I must go.
请原谅，我得走啦。