空隙

两棵树之间有一道空隙。

liǎng shù shù jiān yǒu yī dào kòngxì

There is an opening between two trees.

时间上有一个小的空隙，我们可以利用它。

shíjiān shàng yǒu yī gè xiǎo de kòngxì, wǒmen kěyǐ lìyòng tā.

There is a small gap in time that we can make use of.