尽管早期领先，他们担心冠军可能会溜走。

Despite the early lead, they feared the championship might ___slip ___away.

他眼睁睁看着出国留学的机会溜走。

He watched his chance to study abroad ___slip ___away.

随着截止日期临近，她完成项目的希望开始溜走。

As the deadline approached, her hope of finishing the project began to ___slip ___away.