Spiroheptane
螺[3.3.]庚烷
🗣️ 情景例句
When does the next train leave for New York?
到纽约的下一趟火车什么时候开车？
To paint the roof
油漆屋顶
I suggest you go up to our next higher price level.
我建议您采用我们价格再高一级的货