Ethidium
[化]溴乙非啶,溴化二氨乙苯啡啶
🗣️ 情景例句
Please give him the message.
请转告他。
Step after step the ladder is ascended.
按部就班，循序渐进。
And, as in a nightmare, there was nobody in sight to help me.
就像在恶梦里一样，见不到一个人可以帮助我。