Ethidium
[化]溴乙非啶,溴化二氨乙苯啡啶
🗣️ 情景例句
I hope that someday maybe you'll be able to visit my family in Beijing.
我希望将来有一天，你可以来北京到我家里作客。
I played magic yesterday.
我昨天在玩魔术。
What was the conference like?
这个会议怎么样？