Arrhenite
铍钽铌矿, 蚀变的褐钇铌矿
🗣️ 情景例句
But if you think you should take the job, we're behind you.
但如果你认为你应该接受这份工作， 我们支持你。
We've only sold our product at trade fairs, not in an on-going sales campaign.
我们的产品只在商展时展售，而没有办促销活动。
We were getting very worried.
我们都非常担心呢。