✅ 同义词
🗣️ 情景例句
We need a new coffee-table book,
我们需要一本可以摆在客厅的书，
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 question was, which one?
问题是，哪一种气体导致火灾呢？