Construction(al) material(s)
[化] 结构材料
🗣️ 情景例句
What are you doing?
在做什么？
Dad, do you mind if we use this room?
爸，我们可以使用这个房间吗？
By this time, however, three men had come into the ring and they quickly dragged the drunk to safety.
好像连牛也在为他感到遗憾，