Ethidium
[化]溴乙非啶,溴化二氨乙苯啡啶
🗣️ 情景例句
Does the hotel have a tour service?
这宾馆有旅游服务吗？
Don't forget to write to let us know you arrived safely.
不要忘记写信回来，告诉我们你已经安全抵达。
'And you didn't notice anything unusual?'
“您没有注意到有什么异常情况发生吗？”