Demonstration expense
[经] 示范费, 展出费
🧩 词语组成解析
🗣️ 情景例句
I know you must be excited to go home after such a long business trip.
出差这么久，终于要回家了，我想你一定很高兴。
The product gives you an edge over your competitors,I guess.
我认为你们的产品可以使你们胜过竞争对手。
Oh ,dear! she said.
“天哪！”她说。