Didym
n. = didymium
🗣️ 情景例句
I am so excited. Mother!
我好兴奋， 妈妈！
You may rest assured that the shipment will be duly delivered.
你们尽可放心，我们会按时交货的。
When it has been decided where we are going to drill, we put up at the surface an oil derrick.
当确定钻孔地点后，我们就在那里竖起一个井架。