Steenstrupine
(=steenstrupite)菱黑稀土矿
🗣️ 情景例句
My computer was infected by a virus, I guess since I didn't have firewall installed.
我的电脑受到病毒感染了，我想是因为我没装防火墙。
I really don't know.
我真不知道。
Do you want beef or lamb?
您要牛肉还是要羔羊肉？