Actinide
n. [化]锕类
🗣️ 情景例句
What's the matter?
发生了什么事？
Who is speaking?I don't recognize your voice.
阁下是那一位？我听不出你的声音。
Mary and lizzy are organizing a large medical conference.
玛丽和莉齐正在组织一个大型的医学会议。