Arrhenite
铍钽铌矿, 蚀变的褐钇铌矿
🗣️ 情景例句
Thanks, Richard.
谢谢你 Richard。
We'd like to recommend our new home health monitor.
我们想推荐我们新的家庭健康监测器。
How long have you been here?
你在这里多久了？