She latched on to his arm, hooking her other arm around a tree.

她一只手抓住他的胳膊，另一只胳膊抱住一棵树。

《柯林斯英汉双解大词典》

It was a difficult concept to grasp, but I soon latched on.

那是个难以弄明白的概念，但我很快就理解了。

《牛津词典》

I latched on to their conversation.

我仔细倾听他们的谈话。

youdao

I latched on to their conversation.

我仔细倾听他们的谈话。

youdao