The glue had set hard.

胶已经粘得很紧。

《牛津词典》

Set Hard Boundaries - When things start running over, don't let them.

设定严格的界限——当事情开始超时时，阻止这种情况发生。

youdao

Set Hard Boundaries - When things start running over, don't let them.

设定严格的界限——当事情开始超时时，阻止这种情况发生。

youdao