hang onto的意思是什么

造句：

1. They cling to the belly of their predator and hold on with teeth and claws.

   它们紧紧地抓住猎食者的腹部，用牙齿和爪子紧紧抓住不放。

2. The spring rain hits the banana tree, the gentle rain holds the heartstrings tightly.

   春雨打在香蕉树上,温柔的雨紧紧抓住心弦。

3. Therefore, in front of the opportunity, can not hesitate, must seize it.

   因此，在机会面前，不能犹豫，必须紧紧抓住它。