Yttrotantalite
n. [矿]钇铌钽铁矿
🗣️ 情景例句
Fast food is all bad for you.
快餐对你的健康没有好处。
We're in competition with several other companies for the contract.
我们与另外几家公司逐争取这个合同。
Between 1850 and 1910 the bison population is thought to have fallen from 60 million to just a few hundred.
人们认为，在1850年到1910年之间，野牛的头数从6，000万头降到只有几百头了。