It is not long before they are so accustomed to swimming that they can pick up weights from the floor of the pool.It is not long before
问题描述：
It is not long before they are so accustomed to swimming that they can pick up weights from the floor of the pool.
It is not long before
答
如下是我的翻译~可能会有出入~
不久他们如此习惯游泳以致于他们能从水池的地板拾起重物.
It is not long before 意思是：这是前不久