Niocalite
n. [地]黄硅铌钙石
🗣️ 情景例句
And then he takes it back
然后 ，他就把它收回去
I'll try, but I may have to work late.
就这样办，不过，昨晚工作怕要很晚了。
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.
某些大公司进行的研究属于一般和基础性的研究。因此不保密对他们才有利。