Yttrite
硅鈹釔礦
??? 情景例句
Well, it's hard work.
嗯 這種工作很辛苦。
He that gains time gains all things.
獲得時間就是獲得一切。
If I place an order now, when would you be able to ship it?
如果現在下單子，什么時候可以出貨？