“的空白”造句

长久以来，市场有一块巨大的空白。
For too long there was a huge gap in the market.

他帮我们填满知识上的空白.
He helped us to fill in a big gap in our knowledge.

这有助于弥补我们知识上的空白.
This will help to fill a vacancy in our knowledge.

• #的空白