我不明白看到这条黑色的湍急水流时会激起何种情感，不过一种欣喜若狂的心情总是使我不能自持，坚定了我永远不离开这片土地的眷恋之情。

I don't know what it is rushes up in me at the sight of this dark, swift moving current, but a great exultation lifts me up, affirms the deep wish that is in me never to leave this land.

youdao

我激动得不能自持，冲着电视机大叫起来。

I got carried away and started shouting at the television.

《牛津词典》