Firming
vt.& vi. 使坚固（firm的现在分词形式）
🗣️ 情景例句
Would tomorrow be OK?
明天可以吗？
By the time we got there,the play had already begun.
等我们到那里，戏已经开始了。
I live in a tall building in the middle of the city.What about you?
我住在这个城市中心的一幢高楼里。你呢？