Tuffstone
砂屑凝灰岩
🗣️ 情景例句
I think I have fallen in love with someone.
我恋爱了。
And our successful techniques, and to speak about our failures.
和成功技巧，并讲出我们的失败之处。
As a matter of fact, it is the other way around.
事实上，情况正好相反。