Ethidium
[化]溴乙非啶,溴化二氨乙苯啡啶
🗣️ 情景例句
and I can finish wrapping all these gifts.
和我可以把这些礼物包装完。
I'm calling to say goodbye.
我大电话向你告别来了。
Jim, how long have you been at this school?
吉姆，你到这学校有多么时间了？