Samiresite
铅铌钛铀矿
🗣️ 情景例句
I guess we'll have to exchange it, too.
我想我们还得去换一件。
Please don't forget to say goodbye to the rest of the family for me.
请别忘了代我向你的家人告别。
The doctor looked over Mrs Brown very carefully.
医生非常仔细地给布朗夫人作了检查。