Packboard
n. (有硬框和背带的)帆布背包
🗣️ 情景例句
Thank you very much.
谢谢你。
Well, to tell the truth, I was a little disappointed.
说实话，我有点失望。
The use of pesticides and fertilizers produces cheap grain and vegetables.
使用杀虫剂和化肥生产出廉价的谷物和蔬菜。