Seismitron
岩层稳定测试仪
🗣️ 情景例句
How do you do?
您好！
What's the color of your new dress?
你的新衣服是什么颜色的？
I told her what the revolutionaries were doing and I persuaded her to help me.
我告诉她革命者都在干些什么事，并说服她给我帮忙。