Hollows
n. 圆角面；中空；凹陷处（hollow的复数形式）
🗣️ 情景例句
I think we should take care of the environment, so that we have something to leave for our children.
我觉得我们应该保护好自然，以便将来能给我们的子孙后代留下一些东西。
Thank you very much. Here's $10.00. Give me $1.00 back, please.
太谢谢你了。这是10美元，找我1美元就行了。
which is, in fact, much more complicated.
地震波的运动实际比这要复杂得多。