Voids
n. 空洞, 孔洞；空隙率, 结点间（void的复数）
🗣️ 情景例句
How much for a one-way ticket to New York?
去纽约的单程票多少钱？
Where are my glasses?
我的眼镜在哪儿？
When it has been decided where we are going to drill, we put up at the surface an oil derrick.
当确定钻孔地点后，我们就在那里竖起一个井架。