Construction(al) material(s)
[化] 结构材料
🗣️ 情景例句
Now, let me check them.
现在 让我来看一看。
My cousin is a member of a stamp club, He seems stamp collecting.
我的表兄是一个集邮俱乐部成员，他似乎很喜欢集邮。
Oh! Well, for that, you'd better find an English pen friend.
哦！那你最好为此找一个英文的笔友。