Weissite
碲铜矿
🗣️ 情景例句
Is it that serious a problem, Grandpa?
这个问题有那么重要吗，爷爷？
I have just finished my work.
我刚刚完成我的工作。[表示刚刚完成的动作]
He quickly became the leader.
他很快就成了领袖。