Ulvite
方钛铁矿
🗣️ 情景例句
As I told you before, my door is always open.
正如我以前跟你说的一样，我们的门永远都是敞开的。
Fifty-litre carboy would be the most economical size. Carboys may be retained without charge for two months.
50升的瓶子应是最经济的尺码，这些瓶子可免费保存两个月。
Not at all.
不用谢。