She tried to get a grip on the icy rock.

她尽力抓住那冰冷的石头。

I couldn't get a grip on what was going on.

我无法理解正在发生的事情。

Part of me was very frightened and I consciously had to get a grip on myself.

我其实非常害怕，但又不得不有意识地控制住自己。

I better say something about oil in the ancient world, so that you get a grip on what's going on here.

我最好讲讲古代的石油，这样你们就能了解这里发生了什么。

IT IS hard to get a grip on food.

管制食物是件很难的事。