Selenopyrimidine
[化] 二嘧啶硒
🗣️ 情景例句
Are these the terms that we dicussed?
这些是我们所讨论的条件吗？
I told him to come in while waiting.
我告诉他进来等一下。
It was necessary, therefore, to invent instruments that neither slumbered nor slept.
因此，有必要发明一种仪器，既不打盹儿，也不睡觉。