Lanthanides
高中 Senior High镧族稀土元素, 镧系元素
🗣️ 情景例句
We have closely connected with firms in USA.
我们同美国有良好的业务关系。
What does it matter?
有什么关系？
Spirits labelled 95 proof contain only about 47 percent alcohol.
强度标为95的酒中含47％的酒精。