Thorotungstite
釷鎢礦, 鎢釷礦
??? 情景例句
Can you manage English conversation?
你能用英語談話嗎？
I'm so glad you could make it.
我很高興趕上時間。
The survey revealed a large number of sources of noise that we really dislike.
這個調查顯示出很大數目我們不喜歡的噪音源：