Construction(al) material(s)
[化] 结构材料
🗣️ 情景例句
Mr. Lu, we are very pleased to be able to offer this product to you.
陆先生，我们很高兴能提供这个产品给您。
I'm ready.
我准备好了。
Patience is a mark of confidence.
耐心是自信心的一种表现。