Flashboarding
n. 【土木工程】水闸板，临时挡水闸门，堰板
🗣️ 情景例句
We know.
我们知道。
The worker is pounding steel pipes to mend the leakage of water.
管道工为了修缮漏水而敲打着下水道的铁管。
The first settlers on the plains of America were Native Americans.
美洲平原上的首批定居者是美洲土著人。