Demonstration expense
[经] 示范费, 展出费
🧩 词语组成解析
🗣️ 情景例句
Stone is still in the hospital, but he's making good progress.
世通还在医院，但他的身体康复得很快。
What were you doing when I called you on the telephone?
当我打电话给了你时，你正在做什么？
I was not surprised to find that the machine still refused to work after I had reassembled it,
等我装完后，那台割草机仍然一动不动，对此我倒并不感到吃惊。