Ethidium
[化]溴乙非啶,溴化二氨乙苯啡啶
🗣️ 情景例句
All packed and ready.
都打包好了。
The firemen fight fires and rescue people.
消防队员和火灾搏斗，拯救人们。
Excuse me.Where's the nearest bus stop, please?
请问，最近的公共汽车站在哪儿？